Javascript下拉菜单动态创建节点
今天突然想做个下拉菜单响应动态创建节点文本框的js代码，其实并不是太难
很轻松的便做了出来，但是每次下拉菜单内容变换，去都是在body后面添加子文本框，所以声明了一个count变量，用来计数，以下附上html的测试代码
<html>
<head>
<title>test js</title>
</head>
<body>
<select name="char" id="test" onchange="abc()">
<option value="">-choose-</option>
<option value="aaa">aaa</option>
<option value="bbb">bbb</option>
<option value="ccc">ccc</option>
<option value="ddd">ddd</option>
</select>
<script>
var count=0;
function abc () {
count++;
var xxx = document.getElementById("test").value;
if(xxx=="aaa"&&count==1){
var dhy1 = document.createElement("input");
dhy1.type="text";
document.getElementsByTagName("body")[0].appendChild(dhy1);
}else if((xxx=="bbb"||xxx=="ccc")&&count==1){
var dhy2 = document.createElement("input");
var dhy3 = document.createElement("input");
dhy2.type="date"; dhy3.type="date";
document.getElementsByTagName("body")[0].appendChild(dhy2)
document.getElementsByTagName("body")[0].appendChild(dhy3);
}else{
alert("加载完成!");
}
}
</script>
</body>
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