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                當編寫條件語句的時候,左邊的代碼間距應該是一個“黃金”或者“快樂”的大道。 這是說,不要嵌套`if`語句。多個 return 語句是OK的。這樣可以避免 Cyclomatic 復雜性,并且讓代碼更加容易閱讀。因為你的方法的重要的部分沒有嵌套在分支上,你可以很清楚地找到相關的代碼。 **推薦:** ~~~ - (void)someMethod { if (![someOther boolValue]) { return; } //Do something important } ~~~ **不推薦:** ~~~ - (void)someMethod { if ([someOther boolValue]) { //Do something important } } ~~~
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