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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> function alertMe() { alert("Hello World!"); } $(document).ready(function(){ $("p").click(alertMe); $("button").click(function(){ $("p").unbind("click",alertMe); }); }); </script> </head> <body> <p>This is a paragraph.</p> <p>This is another paragraph.</p> <p>Click any p element to trigger an alert box.</p> <button>Remove the alert box function from the click event for the p elements</button> </body> </html>
运行结果
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