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                1.click只能為頁面現有的元素綁定點擊事件,如果是動態生成的新的元素,是沒有事件的 2.而$(document).on("click","指定的元素",function(){});方法則是將指定的事件綁定在document上,而新產生的元素如果符合指定的元素,那就觸發此事件 不起作用: ``` $('#test').on('click', function() { layer.msg('響應點擊事件'); }); ``` 起作用了: ``` $(document).on('click', '#test', function() { layer.msg('響應點擊事件'); }); ```
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