空格
方法宣告時,在-/+符號之後必須是一個空白。方法每個參數區段之間必須相隔一個空白。
- (void)setExampleText:(NSString *)text image:(UIImage *)image;
特性宣告時,宣告、屬性、類別、指針四項之間都要有空白。
@property (strong, nonatomic) NSString *titleString; @property (weak, nonatomic) id<SomeClassDelegate> delegate; @property (assign, nonatomic) CGFloat strokeWidth;
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