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1 <!DOCTYPE HTML> 2 <html> 3 <head> 4 <meta charset=UTF-8 /> 5 <title>Foucus</title> 6 <script type=‘text/javascript‘ src=‘http://ajax.useso.com/ajax/libs/jquery/1.7.2/jquery.min.js?ver=3.4.2‘></script> 7 <script type="text/javascript"> 8 9 $(function(){ 10 $(‘#t2‘).on(‘mouseup‘,function(){ 11 var obj = $(this); 12 var val = obj.val(); 13 var index = - val.replace(/.*(\.[^\.]+)$/, ‘$1‘).length; 14 obj.get(0).selectionStart=0; 15 obj.get(0).selectionEnd=val.length + index; 16 }) 17 }); 18 19 </script> 20 21 </head> 22 <body> 23 <h2>mytest</h2>File Name：<input type="text" id="t2" value="abcdefg.doc" /> 24 </body> 25 </html>
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原文地址：http://www.cnblogs.com/fsong/p/5058716.html
