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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> this 运算符 </title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript" language="javascript">
<!--
function verifyDate(myObj, height, low) {
if (myObj.value > height || myObj < low) {
alert("您输入的数据不符合范围,请输入 " + low + "与" + height + "之间的数字");
}
}
-->
</script>
</head>
<body>
请输入 1 到 10 之间的数字:<input type="text" name="myText1" onchange="verifyDate(this, 10, 1)" > <br>
请输入 11 到 20 之间的数字: <input type="text" name="myText1" onchange="verifyDate(this, 20, 11)"> <br>
</body>
</html>
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