NSMutableAttributedString

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NSMutableAttributedString *attribute = [[NSMutableAttributedStringalloc] initWithString:@"12345"attributes:@{NSFontAttributeName:[UIFontsystemFontOfSize:30]}];

    [attribute appendAttributedString:[[NSAttributedStringalloc] initWithString:@"abcdefg"attributes:@{NSFontAttributeName:[UIFontsystemFontOfSize:10]}]];

    

    

    UILabel *lab = [[UILabelalloc] initWithFrame:CGRectMake(50,100, 200,50)];

    [self.viewaddSubview:lab];

    lab.attributedText = attribute;

    

    UILabel *lab1 = [[UILabelalloc] initWithFrame:CGRectMake(50,200, 200,50)];

    [self.viewaddSubview:lab1];

    

    NSMutableAttributedString *atttt = [[NSMutableAttributedStringalloc] initWithString:@"zzzzzzzzz"];

    [atttt addAttribute:NSFontAttributeNamevalue:[UIFontsystemFontOfSize:30]range:NSMakeRange(0,5)];

    lab1.attributedText = atttt;

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