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【深度理解依赖注入（Dependence Injection）_Zy0414的博客-CSDN博客】https://blog.csdn.net/Zy0414/article/details/102128397?spm=1001.2101.3001.6650.5&utm_medium=distribute.wap_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-5.wap_blog_relevant_pic&depth_1-utm_source=distribute.wap_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-5.wap_blog_relevant_pic