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5:Ö»ÄÜÊäÈëÓ¢ÎÄ×Ö·ûºÍÊý×Ö
6: js emailÑéÖ¤ ¡¢js ÅжÏemail ¡¢ÐÅÏä/ÓÊÏä¸ñʽÑéÖ¤
7:js×Ö·û¹ýÂË,ÆÁ±Î¹Ø¼ü×Ö
8:jsÃÜÂëÑéÖ¤¡¢ÅжÏÃÜÂë
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1. ³¤¶ÈÏÞÖÆ
<script>
function test()
{
if(document.a.b.value.length>50)
{
alert("²»Äܳ¬¹ý50¸ö×Ö·û£¡");
document.a.b.focus();
return false;
}
}
</script>
<form >
<textarea cols="40" wrap="VIRTUAL" rows="6"></textarea>
<input type="submit" value="check">
</form>
2. Ö»ÄÜÊǺº×Ö
<input /oblog/value.replace(/[^\u4E00-\u9FA5]/g,'')">
3." Ö»ÄÜÊÇÓ¢ÎÄ
<script language=javascript>
function onlyEng()
{
if(!(event.keyCode>=65&&event.keyCode<=90))
event.returnvalue=false;
}
</script>
<input >
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function onlyNum()
{
if(!((event.keyCode>=48&&event.keyCode<=57)||(event.keyCode>=96&&event.keyCode<=105)))
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event.returnvalue=false;
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<input >
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<input /oblog/value.replace(/[\W]/g,"'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))">
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<SCRIPT LANGUAGE=javascript RUNAT=Server>
function isEmail(strEmail) {
if (strEmail.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
return true;
else
alert("oh");
}
</SCRIPT>
<input type=text
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function user(n, a)
{
this.name = n;
this.age = a;
this.toString = function() {
return "Name:" + this.name + ", Age:" + this.age;
}
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