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error: Semantic Issue: Interface type cannot be statically allocated

error: Semantic Issue: Interface type cannot be statically allocated

出現這個錯誤的原因是

接口聲明對象時(我這麼一說,大家應該懂我意思吧),必須聲明為引用,即指針

Car car = [[Car alloc] init];

改為 Car *car = [[Car alloc] init];

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