求10位以内正整数的正则

Question

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Answer 1

<script language="javascript">
function Check()
{
var regPostcode = /^\d{10}$/;
if(document.Form1.txtPostcode.value != "")
{
if (! regPostcode.test(document.Form1.txtPostcode.value))
{
alert("d");
document.Form1.txtPostcode.focus();
document.Form1.txtPostcode.select();
return false;
}
}
}

Answer 2

<script language="javascript">
function Check()
{
var regPostcode = /^\d{10}$/;
if(document.Form1.txtPostcode.value != "")
{
if (! regPostcode.test(document.Form1.txtPostcode.value))
{
alert("d");
document.Form1.txtPostcode.focus();
document.Form1.txtPostcode.select();
return false;
}
}
}
</script>