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5月22日作业
clin
Original
607 people have browsed it

 * 控制器 接收用户的请求并将处理结果返回给调用者的工具,本质上就是一个类

    >功能:处理请求,返回处理结果,相当于CPU

    > 用途:处理请求数据

 * 请求对象 可以理解为URL地址、URL对象;将客户端请求的资源以URL的方式发送到服务器上,服务器响应请求并将资源返回给客户端

    > 功能:接受用户请求,响应请求

    > 用途:实现用户界面与数据库的交互


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