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檢查不同的檔案類型

File取得類型

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

這積木是用作取得檔案的檔案類型。

參數:檔案
輸出:螢幕項目(字串)
示例代碼:

				
					{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>mainLayout</variable><variable>mainScreen</variable><variable>fileInput</variable><variable>getFilesButton</variable><variable>file</variable><variable>_type</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\">getFilesButton</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\">Get 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\">getFilesButton</field></block></value><next><block type=\"ScreenItem_ScreenItem_onClick\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">getFilesButton</field></block></value><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">file</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=\"variables_set\"><field name=\"VAR\">_type</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"File_FileContainer_getType\"><value name=\"this\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"variables_get\"><field name=\"VAR\">file</field></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow></value></block></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=\"Control_createTextBlock\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"1\" _input_init=\"true\"></mutation><value name=\"text\"><block type=\"variables_get\"><field name=\"VAR\">_type</field></block></value></block></value></block></next></block></next></block></statement></block></next></block></next></block></next></block></next></block></next></block></next></block></next></block></statement></block></xml>"}
				
			

輸出結果:

Next 檢查檔案名稱