<script> window.onload=function(){ var reg=/^[0-9]{0,1}[0-9]{0,1}$/ alert(reg.test(99)) alert(reg.test(100)) } </script>
好象都看错题目了^_^ <script> var re = /^[1-8]([0-9])?$|^9([0-8])?$/; alert(re.test(0));//false alert(re.test(98));//1-98:true alert(re.test(99));//false </script>
<script>
window.onload=function(){
var reg=/^[0-9]{0,1}[0-9]{0,1}$/
alert(reg.test(99))
alert(reg.test(100))
}
</script>
<script>
var re = /^[1-8]([0-9])?$|^9([0-8])?$/;
alert(re.test(0));//false
alert(re.test(98));//1-98:true
alert(re.test(99));//false
</script>