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Go编程技巧之“延后抽象”
source link: https://zhuanlan.zhihu.com/p/35888536?
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鲁迅曾经说过，复杂的问题都能用增加一层抽象来解决。（鲁迅： 我特么没说过！）在实际工程中，为了解耦，可能需要定义大量的接口。如在用户管理系统中，可能含有一个像根据用户名检索用户的服务 UserSearcher：ty…
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