UILabel分类扩展属性字符串的使用

#import <UIKit/UIKit.h>

@interface UILabel (AttributedString)

- (void)setTextFont:(UIFont *)font atRange:(NSRange)range;

- (void)setTextColor:(UIColor *)color atRange:(NSRange)range;

- (void)setTextLineSpace:(float)space atRange:(NSRange)range;

- (void)setTextFont:(UIFont *)font color:(UIColor *)color atRange:(NSRange)range;

- (void)setTextAttributes:(NSDictionary *)attributes atRange:(NSRange)range;

@end
#import <UIKit/UIKit.h>

@interface UILabel (At