文檔

聯絡我們

地址:香港科學園科技大道西19號3樓345室

電郵:[email protected]

電話/WhatsApp:+852 67112315

Print

轉換JsonValue為字串

JsonValue作為字串

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

這積木是用作轉換JsonValue為字串。

參數:Json Value

輸出:字串

示例代碼:

				
					{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>mainLayout</variable><variable>mainScreen</variable><variable>jsonValue</variable><variable>string</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\">jsonValue</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Json_parse\"><value name=\"str\"><shadow type=\"text\"><field name=\"TEXT\">\"Hello World\"</field></shadow></value></block></value><next><block type=\"variables_set\"><field name=\"VAR\">string</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Json_JsonValue_asString\"><value name=\"jsonValue\"><block type=\"variables_get\"><field name=\"VAR\">jsonValue</field></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=\"Json_JsonValue_stringify\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"0\" _input_init=\"false\"></mutation><value name=\"jsonValue\"><block type=\"variables_get\"><field name=\"VAR\">jsonValue</field></block></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=\"text_join\"><mutation items=\"2\"/><value name=\"ADD0\"><shadow type=\"text\"><field name=\"TEXT\">The string is: </field></shadow></value><value name=\"ADD1\"><shadow type=\"text\"><field name=\"TEXT\"/></shadow><block type=\"variables_get\"><field name=\"VAR\">string</field></block></value></block></value></block></value></block></next></block></next></block></next></block></next></block></next></block></statement></block></xml>"}
				
			

輸出結果:

Previous 轉換JsonValue為數字