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陣列
陣列

該文件涵蓋了基本的陣列操作,包括創建、讀取、修改和各種操作,例如查找位置、反轉以及在特定位置插入和刪除值。

創造

設置數位數位數位數位陣組

將清單設置為陣列

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable></variables><block type=\"variables_set\" disabled=\"true\" x=\"-23\" y=\"68\"><field name=\"VAR\">list</field><value name=\"VALUE\"><block type=\"lists_create_with\" disabled=\"true\"><mutation items=\"2\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value><value name=\"ADD1\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">1</field></shadow></value></block></value></block></xml>"}

此塊用於將數位陣列設置為變數。

參數: 數字(預設值:0, 1)

輸出: N/A

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable><variable>value</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"2\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow></value><value name=\"ADD1\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><next><block type=\"pxt_controls_for_of\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">value</field></shadow></value><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value><statement name=\"DO\"><block type=\"basic_consoleLogNum\"><value name=\"num\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">value</field></block></value></block></value></block></statement></block></next></block></statement></block></xml>"}

輸出:

將清單設置為 Array of - 輸出

設置文字陣列

將文字清單設置為陣列

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable><variable>value</variable><variable>text list</variable></variables><block type=\"variables_set\" disabled=\"true\" x=\"70\" y=\"284\"><field name=\"VAR\">text list</field><value name=\"VALUE\"><block type=\"lists_create_with\" disabled=\"true\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\" disabled=\"true\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\" disabled=\"true\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\" disabled=\"true\"><field name=\"TEXT\">c</field></shadow></value></block></value></block></xml>"}

此塊用於將文字陣列設置為變數。

參數: 字串(預設值:a、b、c)

輸出: N/A

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>index</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">text_list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_length\"><value name=\"VALUE\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></statement></block></next></block></statement></block></xml>"}

輸出:

將文本清單設置為 Array of - 輸出

創建新陣列

空陣列

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>index</variable></variables><block type=\"lists_create_with\" disabled=\"true\" x=\"-22\" y=\"292\"><mutation items=\"0\" horizontalafter=\"3\"/></block></xml>"}

此塊用於創建新陣列。

參數: 屏幕專案

輸出: 陣列

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>array</variable><variable>index</variable></variables><block type=\"pxt-on-start\" x=\"22\" y=\"383\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">array</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"2\" horizontalafter=\"3\"/><value name=\"ADD0\"><block type=\"text\"><field name=\"TEXT\">text 1</field></block></value><value name=\"ADD1\"><block type=\"text\"><field name=\"TEXT\">text 2</field></block></value></block></value><next><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_length\"><value name=\"VALUE\"><block type=\"variables_get\"><field name=\"VAR\">array</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">array</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></statement></block></next></block></statement></block></xml>"}

輸出:

空陣列 - 輸出

計算數位的長度

陣列清單的長度

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>array</variable><variable>index</variable><variable>list</variable></variables><block type=\"lists_length\" disabled=\"true\" x=\"112\" y=\"293\"><value name=\"VALUE\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value></block></xml>"}

此塊用於顯示陣列中的項目數。

參數: 螢幕項目(陣列)

輸出:

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">text_list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"basic_consoleLogNum\"><value name=\"num\"><block type=\"lists_length\"><value name=\"VALUE\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value></block></value></block></next></block></statement></block></xml>"}

輸出:

陣列清單的長度 - 輸出

顯示帶有所選索引的值

清單獲取值

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>list</variable></variables><block type=\"lists_index_get\" disabled=\"true\" x=\"-22\" y=\"472\"><value name=\"LIST\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value></block></xml>"}

此塊用於顯示陣列中給定索引處的值。

參數:

  • 螢幕項目(陣列)

輸出: 屏幕專案

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">text_list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow></value></block></value></block></next></block></statement></block></xml>"}

輸出:

清單獲取值 - 輸出

顯示將被刪除的值

列出 get 和 remove 值

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>list</variable></variables><block type=\"array_removeat\" disabled=\"true\" x=\"-22\" y=\"338\"><value name=\"list\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value><value name=\"index\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value></block></xml>"}

這個塊用於顯示和刪除特定索引處的值。

參數:

  • 螢幕項目(陣列)

輸出: 屏幕專案

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">text_list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"array_removeat\"><value name=\"list\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value><value name=\"index\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value></block></next></block></statement></block></xml>"}

輸出:

列出 Get 和 Remove at 的值 - 輸出

顯示和刪除最後一項

從清單中獲取和刪除最後一個值

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>list</variable></variables><block type=\"array_pop\" disabled=\"true\" x=\"-22\" y=\"383\"><value name=\"list\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value></block></xml>"}

這個塊用於顯示和刪除陣列內的最後一個值。

參數: 螢幕項目(陣列)

輸出: 屏幕專案

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">text_list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"array_removeat\"><value name=\"list\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value><value name=\"index\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value></block></next></block></statement></block></xml>"}

輸出:

從 - 輸出中獲取和刪除最後一個值

顯示和刪除第一項

從清單中獲取和刪除第一個值

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>list</variable></variables><block type=\"array_shift\" disabled=\"true\" x=\"-22\" y=\"338\"><value name=\"list\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value></block></xml>"}

此塊用於顯示和刪除陣列內的第一個值。

參數: 螢幕項目(陣列)

輸出: 屏幕專案

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>index</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">text_list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"array_shift\"><value name=\"list\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value></block></value><next><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"typescript_expression\"><field name=\"EXPRESSION\">\"After removing th e value, the remaining values are:\"</field></block></value><next><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_length\"><value name=\"VALUE\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></statement></block></next></block></next></block></next></block></statement></block></xml>"}

輸出:

從清單中獲取和刪除第一個值 - 輸出

顯示隨機值

從清單中獲取隨機值

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>index</variable><variable>list</variable></variables><block type=\"array_pickRandom\" disabled=\"true\" x=\"-22\" y=\"652\"><value name=\"list\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value></block></xml>"}

修改

修改數位內部的值

列出 0 到 ? 處的設置值

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>index</variable><variable>list</variable></variables><block type=\"lists_index_set\" disabled=\"true\" x=\"23\" y=\"563\"><value name=\"LIST\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value></block></xml>"}

此塊用於修改數位中選定位置的值。

參數: 螢幕項目(陣列)

條件:

  • 數字(預設值:0)
  • 屏幕專案

輸出: N/A

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>index</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">text_list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"lists_index_set\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow></value><value name=\"VALUE\"><shadow type=\"text\"><field name=\"TEXT\">d</field></shadow></value><next><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_length\"><value name=\"VALUE\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></statement></block></next></block></next></block></statement></block></xml>"}

輸出:

列出設定值 - 輸出

在末尾插入值

清單增加價值…結束

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>index</variable><variable>list</variable></variables><block type=\"array_push\" disabled=\"true\" x=\"23\" y=\"292\"><value name=\"list\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value></block></xml>"}

此塊用於將陣列末尾的值相加。

參數:

  • 螢幕項目(陣列)
  • 屏幕專案

輸出: N/A

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>index</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">text_list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"array_push\"><value name=\"list\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value><value name=\"value\"><shadow type=\"text\"><field name=\"TEXT\">END</field></shadow></value><next><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_length\"><value name=\"VALUE\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></statement></block></next></block></next></block></statement></block></xml>"}

輸出:

文字清單向 End 新增值 - 輸出

刪除最後一個值

從清單中刪除最後一個值

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>index</variable><variable>list</variable></variables><block type=\"array_pop_statement\" disabled=\"true\" x=\"23\" y=\"518\"><value name=\"list\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value></block></xml>"}

這個塊用於刪除陣列中的最後一個值。

參數:

  • 螢幕項目(陣列)
  • 屏幕專案

輸出: N/A

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>index</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">text_list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"array_pop_statement\"><value name=\"list\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value><next><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_length\"><value name=\"VALUE\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></statement></block></next></block></next></block></statement></block></xml>"}

輸出:

從文本清單中刪除最後一個值 -Output

刪除第一個值

從清單中刪除第一個值

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>index</variable><variable>list</variable></variables><block type=\"array_shift_statement\" disabled=\"true\" x=\"23\" y=\"472\"><value name=\"list\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value></block></xml>"}

此塊用於刪除陣列中的第一個值。

參數:

  • 螢幕項目(陣列)
  • 屏幕專案

輸出: N/A

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>index</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">text_list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"array_shift_statement\"><value name=\"list\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value><next><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_length\"><value name=\"VALUE\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">text_list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></statement></block></next></block></next></block></statement></block></xml>"}

輸出:

從清單中刪除第一個值 - 輸出

在開始時增加價值

清單插入…開始時

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>text_list</variable><variable>index</variable><variable>list</variable></variables><block type=\"array_unshift\" disabled=\"true\" x=\"-22\" y=\"427\"><value name=\"list\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value></block></xml>"}

此塊用於在陣列的開頭添加一個值。

參數:

  • 螢幕項目(陣列)
  • 屏幕專案

輸出: N/A

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable><variable>insert</variable><variable>index</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"variables_set\"><field name=\"VAR\">insert</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"array_unshift\"><value name=\"list\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value><value name=\"value\"><shadow type=\"text\"><field name=\"TEXT\">START</field></shadow></value></block></value><next><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_length\"><value name=\"VALUE\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></statement></block></next></block></next></block></statement></block></xml>"}

輸出:

開始插入 - 輸出

在開頭插入值

清單插入到開頭

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable><variable>insert</variable><variable>index</variable></variables><block type=\"array_unshift_statement\" disabled=\"true\" x=\"23\" y=\"517\"><value name=\"list\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value></block></xml>"}

此塊用於在陣列的開頭添加一個值。

參數:

  • 螢幕項目(陣列)
  • 屏幕專案

輸出: N/A

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable><variable>index</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"array_unshift_statement\"><value name=\"list\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value><value name=\"value\"><shadow type=\"text\"><field name=\"TEXT\">START</field></shadow></value><next><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_length\"><value name=\"VALUE\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></statement></block></next></block></next></block></statement></block></xml>"}

輸出:

開始插入 - 輸出

在特定的地方增加價值

清單插入值為 0

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable><variable>index</variable></variables><block type=\"array_insertAt\" disabled=\"true\" x=\"23\" y=\"607\"><value name=\"list\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value><value name=\"index\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value></block></xml>"}

此塊用於在特定位置添加一個值。

參數:

  • 螢幕項目(陣列)
  • 條件:數字(預設值:0)
  • 屏幕專案

輸出: N/A

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable><variable>index</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"array_insertAt\"><value name=\"list\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value><value name=\"index\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value><value name=\"value\"><shadow type=\"text\"><field name=\"TEXT\">hello</field></shadow></value><next><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_length\"><value name=\"VALUE\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></statement></block></next></block></next></block></statement></block></xml>"}

輸出:

清單插入到 0 值 - 輸出

在特定位置刪除值

列出刪除值

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable><variable>index</variable></variables><block type=\"array_removeat_statement\" disabled=\"true\" x=\"0\" y=\"0\"><value name=\"list\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value><value name=\"index\"><shadow type=\"math_number\" disabled=\"true\"><field name=\"NUM\">0</field></shadow></value></block></xml>"}

這個塊用於刪除特定位置的值。

參數:

  • 螢幕項目(陣列)
  • 條件:數字(預設值:0)

輸出: N/A

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable><variable>index</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"array_removeat_statement\"><value name=\"list\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value><value name=\"index\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value><next><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_length\"><value name=\"VALUE\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></statement></block></next></block></next></block></statement></block></xml>"}

輸出:

列出 Remove Value At - 輸出

操作

查找值的位置

清單查找索引

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable><variable>index</variable></variables><block type=\"array_indexof\" disabled=\"true\" x=\"-22\" y=\"607\"><value name=\"list\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value></block></xml>"}

此塊用於查找值的位置。

參數:

  • 螢幕項目(陣列)
  • 條件:字串/數位

輸出:

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable><variable>find</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"variables_set\"><field name=\"VAR\">find</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"array_indexof\"><value name=\"list\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value><value name=\"value\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"basic_consoleLogNum\"><value name=\"num\"><block type=\"variables_get\"><field name=\"VAR\">find</field></block></value></block></next></block></next></block></statement></block></xml>"}

輸出:

清單 尋找索引 - 輸出

反轉陣列

反向清單

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable><variable>find</variable></variables><block type=\"array_reverse\" disabled=\"true\" x=\"23\" y=\"697\"><value name=\"list\"><block type=\"variables_get\" disabled=\"true\"><field name=\"VAR\">list</field></block></value></block></xml>"}

此塊用於反轉數位列中的值。

參數: 螢幕項目(陣列)

輸出: N/A

範例代碼:

{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>list</variable><variable>index</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">list</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_create_with\"><mutation items=\"3\" horizontalafter=\"3\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">a</field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\">b</field></shadow></value><value name=\"ADD2\"><shadow type=\"text\"><field name=\"TEXT\">c</field></shadow></value></block></value><next><block type=\"array_reverse\"><value name=\"list\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value><next><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"lists_length\"><value name=\"VALUE\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"basic_consoleLogText\"><value name=\"text\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">list</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></statement></block></next></block></next></block></statement></block></xml>"}

輸出:

反向清單 - 輸出

目録