<input maxlength=9
onkeypress="var k=event.keyCode; return k>=48&&k<=57"
onpaste="return !clipboardData.getData('text').match(/\D/)"
ondragenter="return false"
style="ime-mode:Disabled"
>
onkeypress="var k=event.keyCode; return k>=48&&k<=57"
onpaste="return !clipboardData.getData('text').match(/\D/)"
ondragenter="return false"
style="ime-mode:Disabled"
>
function check(){//只能输入数字键、向左键、向右键、退格键、delete键
//alert(event.keyCode);
//event.keyCode==9 对应:“tab”键
if(!((event.keyCode>=48&&event.keyCode<=57)||(event.keyCode>=96&&event.keyCode<=105)
||event.keyCode==8||event.keyCode==46||event.keyCode==37||event.keyCode==39||event.keyCode==9)){
event.returnValue=false;
alert("请重新输入,这里只能输入数字键、向左键、向右键、退格键、delete键!");
}
}
有没有对document.all.item("num1").value值的判别方法?