jquery的clon
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="jquery-3.1.1.js"></script>
</head>
<body>
<div id="tianjiaclon">
<div id="ddddd">
<input type="button" value="+" onclick="f(this)">
<input type="text">
</div>
</div>
</body>
<script>
function f(self) {
var s = $(self).parent().clone(); //获取到this的点击事件后，返回父标签，进行clon
//把clon出来的标签的"+"号变为"-"号
s.children(":button").val("-").attr("onclick","f1(this)");
$("#tianjiaclon").append(s); //把clon的信息添加到，最外层的div标签中
}
function f1(self) {
//点击"-"号把clon当前对象删除
$(self).parent().remove();
}
</script>
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