jQuery serialize() 方法
定义和用法
serialize() 方法通过序列化表单值创建 URL 编码文本字符串。
您可以选择一个或多个表单元素（如输入和/或文本区域），或表单元素本身。
序列化后的值可以在进行 AJAX 请求时用于 URL 查询字符串中。
语法
$(选择器).serialize()
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