z007 · August 29, 2015 14:08
diff --git a/1.txt b/1.txt
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 <title>下拉框值显示拒绝修改</title>
 <script type="text/javascript">
            function inputText(){
                if (myForm.myCity.value == "") {
                    myForm.address.value = "您还没有选择";
                }
                else {
                    myForm.address.value = "您来自：" + myForm.myCity.value;
                }
            }
        </script>
    </head>
    <body>
        <form name="myForm" action="" method="get">
            请选择：
            <select name="myCity" onchange="inputText()">
                <option value="">请选择</option>
                <option value="北京">北京</option>
                <option value="上海">上海</option>
                <option value="广州">广州</option>
            </select>
          
            <input name="address" type="text" onchange="alert('您不能修改此处的文字')+inputText()">
        </form>
 </body>
 </html>
	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
	<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
	<title>下拉框值显示拒绝修改</title>
	<script type="text/javascript">
	function inputText(){
	if (myForm.myCity.value == "") {
	myForm.address.value = "您还没有选择";
	}
	else {
	myForm.address.value = "您来自：" + myForm.myCity.value;
	}
	}
	</script>
	</head>
	<body>
	<form name="myForm" action="" method="get">
	请选择：
	<select name="myCity" onchange="inputText()">
	<option value="">请选择</option>
	<option value="北京">北京</option>
	<option value="上海">上海</option>
	<option value="广州">广州</option>
	</select>

	<input name="address" type="text" onchange="alert('您不能修改此处的文字')+inputText()">
	</form>
	</body>
	</html>