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獲取先前的文件

FileInput取得檔案

				
					{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"Control_FileInput_getFiles\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">fileInput</field></block></value></block></xml>"}
				
			

這積木是用作取得先前所選的檔案。

參數:螢幕項目(輸入控制:檔案輸入)

輸出:螢幕項目

示例代碼:

合併檔案和陣列積木,建立一個按鈕檢查是否能獲取檔案。

				
					{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"ScreenItem_ScreenItem_onClick\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">createButton</field></block></value><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">gettingFile</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Control_FileInput_getFiles\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">fileInput</field></block></value></block></value><next><block type=\"Control_TextBlock_setContent\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">result</field></block></value><value name=\"content\"><block type=\"File_FileContainer_getName\"><value name=\"this\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">gettingFile</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow></value></block></value></block></value></block></next></block></statement></block></xml>"}
				
			
				
					{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>mainLayout</variable><variable>mainScreen</variable><variable>fileInput</variable><variable>createButton</variable><variable>result</variable><variable>gettingFile</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">mainLayout</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"ScreenItem_createLayout\"/></value><next><block type=\"variables_set\"><field name=\"VAR\">mainScreen</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Screen_create\"><value name=\"label\"><shadow type=\"text\"><field name=\"TEXT\">Main</field></shadow></value><value name=\"layout\"><block type=\"variables_get\"><field name=\"VAR\">mainLayout</field></block></value></block></value><next><block type=\"variables_set\"><field name=\"VAR\">fileInput</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Control_createFileInput\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"0\" _input_init=\"false\"></mutation></block></value><next><block type=\"Control_FileInput_setMultiple\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">fileInput</field></block></value><value name=\"isMultiple\"><shadow type=\"logic_boolean\"><field name=\"BOOL\">FALSE</field></shadow></value><next><block type=\"ScreenItem_Layout_add\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">mainLayout</field></block></value><value name=\"item\"><block type=\"variables_get\"><field name=\"VAR\">fileInput</field></block></value><next><block type=\"variables_set\"><field name=\"VAR\">createButton</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Control_createButton\"><value name=\"content\"><shadow type=\"text\"><field name=\"TEXT\">Getting files</field></shadow></value></block></value><next><block type=\"ScreenItem_Layout_add\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">mainLayout</field></block></value><value name=\"item\"><block type=\"variables_get\"><field name=\"VAR\">createButton</field></block></value><next><block type=\"variables_set\"><field name=\"VAR\">result</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Control_createTextBlock\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"0\" _input_init=\"false\"></mutation></block></value><next><block type=\"ScreenItem_Layout_add\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">mainLayout</field></block></value><value name=\"item\"><block type=\"variables_get\"><field name=\"VAR\">result</field></block></value><next><block type=\"ScreenItem_ScreenItem_onClick\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">createButton</field></block></value><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">gettingFile</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Control_FileInput_getFiles\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">fileInput</field></block></value></block></value><next><block type=\"Control_TextBlock_setContent\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">result</field></block></value><value name=\"content\"><block type=\"File_FileContainer_getName\"><value name=\"this\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">gettingFile</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow></value></block></value></block></value></block></next></block></statement></block></next></block></next></block></next></block></next></block></next></block></next></block></next></block></next></block></next></block></statement></block></xml>"}
				
			

當選擇PNG檔案並按下「Getting files」後的輸出結果:

當獲得檔案名稱和按下「Getting files」按鈕後的輸出結果:

當獲取檔案內的圖像並按下「Getting files」後的輸出結果:

當獲取檔案內的影片並按下「Getting files」後的輸出結果:

當獲取檔案並按下按鈕後的輸出結果:(接受的檔案類型:.txt)

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