字体大小一样
NSString *heightlightString = @"叫我第一名";
NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:heightlightString];
[str addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(2, 3)];
label.attributedText = str;
字体大小不一样
NSString *string = [NSString stringWithFormat:@"联系电话：12345678899"];
NSMutableAttributedString *myString = [[NSMutableAttributedString alloc] initWithString:string];
[myString addAttributes:@{NSFontAttributeName:[UIFont boldSystemFontOfSize:20], NSForegroundColorAttributeName:[UIColor redColor]} range:NSMakeRange(5, 11)];
clockLabel.attributedText = stra;
label.attributedText = myString;
range需要location和length两个参数，设置想要改动的字体颜色和范围.
