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0522作业
phpcn_u37766的博客
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  1. 以你所理解的方式,描述一下控制器与请求对象的功能与用途

     控制器就是类文件,里面有各种方法,接收用户操作,调用方法 返回结果。

    请求方法 就是URL 


    2. 实例讲解一下:依赖注入的实现原理(构造器与普通方法)


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