<HTML>
<script>
var ss="019d"
for(var i=0;i<ss.length;i++){
if((ss.charAt(i)).charCodeAt()<48||(ss.charAt(i)).charCodeAt()>57)
alert("含有非数字")
}
</script>
</HTML>
<script>
var ss="019d"
for(var i=0;i<ss.length;i++){
if((ss.charAt(i)).charCodeAt()<48||(ss.charAt(i)).charCodeAt()>57)
alert("含有非数字")
}
</script>
</HTML>
var ansibase = "0123456789"
if (ansibase.indexOf(p_char) == -1){
return 1
}else{
return 0
}
}
function chk()
{
if(event.keyCode<48||event.keyCode>57)event.returnValue=0;
}
</script>
<input type=text name="" onkeydown="chk();">
<input type=text value=aa111 name=txtTest>
<input type=button value=测试 name=btnTest onclick=check()>
</form>
<script>
function check()
{
r1 = new RegExp('[^0-9]','');
if( document.frmTest.txtTest.value.search(r1) >= 0 ){
window.alert('含有非数字字符!!');
}
}
</script>