HTML限制文本框输入数字
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<script languang="javascript">
function JustNumberText(){
if ( !(((window.event.keyCode >= 48) && (window.event.keyCode <= 57)) || window.event.keyCode == 10 || window.event.keyCode == 13)) {
window.event.keyCode = 0 ;
alert("请输入数字!"); return false;
}
}
function checkCode(){
var value = event.keyCode;
if (!((value > 47)&&(value < 58)) ){
alert("请输入数字!"); return false;
}
}
</script>
<script language=javascript>
function vis()
{
if(isNaN(form1.t1.value))
{
alert('电话号码应是数字格式')
form1.t1.focus()
return false
}
if(form1.t1.value.length > 11)
{
alert('电话号码应是11位的')
form1.t1.focus()
return false
}
}
</script>
</HEAD>
<BODY>
<form action="?" method="post" name="form1">
<input name="txt1" onChange="if(/\D/.test(this.value)){alert('电话号码请输入数字');this.value='';this.focus()}">
<input onKeyUp="if(isNaN(value))execCommand('undo')" onChange="if(/\D/.test(this.value)){alert('只能输入数字');this.value='';}">
<input onKeyDown="if(isNaN(value))execCommand('undo')" onChange="if(/\D/.test(this.value)){alert('只能输入数字');this.value='';}">
<input onkeyup="this.value=this.value.replace(/\D/g,'')" onafterpaste="this.value=this.value.replace(/\D/g,'')">
<input onkeypress="if(event.keyCode<48 || event.keyCode>57){alert('电话号码只能输入数字');event.returnValue = false;}" onkeyup="this.value=this.value.replace(/[^\d*]/,'')">
<input onkeypress="if (event.keyCode < 48 || event.keyCode > 57){alert('电话号码只能输入数字');event.returnValue = false;}" onpaste="return false;" onkeyup="this.value=this.value.replace(/[^\d*]/,'')">
<input type="submit" name="submit" value="提交">
</form>
</BODY>
</HTML>
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<script languang="javascript">
function JustNumberText(){
if ( !(((window.event.keyCode >= 48) && (window.event.keyCode <= 57)) || window.event.keyCode == 10 || window.event.keyCode == 13)) {
window.event.keyCode = 0 ;
alert("请输入数字!"); return false;
}
}
function checkCode(){
var value = event.keyCode;
if (!((value > 47)&&(value < 58)) ){
alert("请输入数字!"); return false;
}
}
</script>
<script language=javascript>
function vis()
{
if(isNaN(form1.t1.value))
{
alert('电话号码应是数字格式')
form1.t1.focus()
return false
}
if(form1.t1.value.length > 11)
{
alert('电话号码应是11位的')
form1.t1.focus()
return false
}
}
</script>
</HEAD>
<BODY>
<form action="?" method="post" name="form1">
<input name="txt1" onChange="if(/\D/.test(this.value)){alert('电话号码请输入数字');this.value='';this.focus()}">
<input onKeyUp="if(isNaN(value))execCommand('undo')" onChange="if(/\D/.test(this.value)){alert('只能输入数字');this.value='';}">
<input onKeyDown="if(isNaN(value))execCommand('undo')" onChange="if(/\D/.test(this.value)){alert('只能输入数字');this.value='';}">
<input onkeyup="this.value=this.value.replace(/\D/g,'')" onafterpaste="this.value=this.value.replace(/\D/g,'')">
<input onkeypress="if(event.keyCode<48 || event.keyCode>57){alert('电话号码只能输入数字');event.returnValue = false;}" onkeyup="this.value=this.value.replace(/[^\d*]/,'')">
<input onkeypress="if (event.keyCode < 48 || event.keyCode > 57){alert('电话号码只能输入数字');event.returnValue = false;}" onpaste="return false;" onkeyup="this.value=this.value.replace(/[^\d*]/,'')">
<input type="submit" name="submit" value="提交">
</form>
</BODY>
</HTML>
