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源代码：
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<!DOCTYPE html> <html> <head> <script src="//libs.baidu.com/jquery/1.10.2/jquery.min.js"> </script> <script> $(document).ready(function(){ $("p").on("click",function(){ $(this).css("background-color","pink"); }); $("button").click(function(){ $("p").off("click"); }); }); </script> </head> <body> <p>Click this paragraph to change its background color.</p> <p>Click the button below and then click on this paragraph (the click event is removed).</p> <button>Remove the click event handler</button> </body> </html>
运行结果
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