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重构：烧脑判断大扫除
source link: https://juejin.im/post/5dd538e85188254e4052785a
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编写业务代码的时候常常会遇到判断，面对各种业务场景，你知道最优方案吗？ 让我们看看基本情况： 初级：if else else if一把梭干就完事 中级：switch case、if else、多态、用设计模式包装 高深：清晰所有判断条件的边界，用解释性强且合
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