web.有要求的输入框.随笔

xiaoxiao2021-02-28  85

随笔

<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>无标题文档</title> <script> window.onload=function () { var oTxt=document.getElementById('txt1'); oTxt.onkeydown=function (ev) { var eve=ev||event; // alert(eve.keyCode); if(eve.keyCode!=8&&(eve.keyCode<96&&eve.keyCode>105)&&eve.keyCode!=39&&eve.keyCode!=37){ return false; } }; }; </script> </head> <body> <input type="text" id="txt1" /> </body> </html>
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