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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>本教程(w3big.com)</title> <script src="http://cdn.static.w3big.com/libs/jquery/1.10.2/jquery.min.js"> </script> <script> $(document).ready(function(){ $("button").click(function(){ alert($("input:text").val()); }); }); </script> </head> <body> 第一个名称: <input type="text" name="fname" value="Peter"><br> 最后一个名称: <input type="text" name="lname" value="Griffin"><br><br> <button>返回第一个输入字段的值</button> </body> </html>