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JScript code:

var str="1asdasd";
if(!isNaN(parseInt(str.charAt(0)))){
alert("Ê××Öĸ²»ÔÊÐíÊÇÊý×Ö")
}



if(/^\d/.test(value)){
  alert("Ê××Öĸ²»ÔÊÐíÊÇÊý×Ö");
  return false;
}


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  <script type="text/javascript">
  function oo(a){
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HTML code:

<!DOCTYPE html PUBLIC &quo ......

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ºóÃæÌá½»¿É <form name="" action="" method="" onsubmit="return isPostalCode();return isID();return isEmail() "

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