1 <!DOCTYPE html>
2 <html lang="en">
3 <head>
4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
5 <title>输入框限定只输入数字</title>
6 <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" />
7 <script src="js/jquery.min.js"></script>
8 </head>
9 <body>
10
11 <input type="text">
12 <script>
13 $(function(){
14 $("input").keydown(function(e){
15 if(e.keyCode == 8 || e.keyCode >= 48 && e.keyCode <= 57 || e.keyCode >= 96 && e.keyCode <=105){
16 return true;
17 }else{
18 return false;
19 }
20 })
21 })
22 </script>
23 </body>
24 </html>
