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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>迹忆客(jiyik.com)</title> <script src="https://www.jiyik.com//templets/jiyi/v2/js/jquery-2.2.4.min.js"> </script> <script> $(document).ready(function(){ $("#p1").mousedown(function(){ alert("鼠标在该段落上按下！"); }); }); </script> </head> <body> <p id="p1">这是一个段落</p> </body> </html>
