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$("属性名").serialize(); //自动拼接参数
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>jquery自动拼接参数</title>
<script type="text/javascript" src="js/jquery/jquery-1.11.2.js"></script>
<script type="text/javascript">
$(function(){
$("#btn").on("click",function(){
var param = $("#form").serialize();//自动拼接参数
console.debug(param);
});
});
</script>
</head>
<body>
<form id="form">
<input type="text" name="username">
<input type="password" name="password">
<input type="hidden" name="id" value="1">
<select name="optionId">
<option value="1">数据1</option>
<option value="2">数据2</option>
<option value="3">数据3</option>
<option value="4">数据4</option>
</select>
<input type="button" id="btn" value="自动拼接参数">
</form>
</body>
</html>效果：
