日期:2014-05-16 浏览次数:20544 次
<input type="text" onkeypress="return AsciiUp(this,event);" />
<script>
function AsciiUp(obj,e){
var ev = window.event || e;
var cd = ev.keyCode || ev.charCode;
if(cd >=65 && cd <90 || cd >=97 && cd < 122) {
ev.keyCode && (ev.keyCode = ev.keyCode+1);
if(ev.charCode){
obj.value=obj.value+String.fromCharCode(ev.charCode+1) ;
return false;
}
}
}
------解决方案--------------------
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>测试</title>
<script type="text/javascript">
<!--
function AsciiUp(event){
var e = event || window.event;
var code = e.keyCode || e.which;
if((64 < code && code <90) || (96 < code && code < 122)){
code ++;
var target = e.target || e.srcElement;
target.value += String.fromCharCode(code);
return false;
}
}
//-->
</script>
</head>
<body>
<input type="text" onkeypress="return AsciiUp(event)" />
</body>
</html>