UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(15, 100, self.view.bounds.size.width - 30, 200)];
label.font = [UIFont systemFontOfSize:15];
NSString *leftString =@"活动地址：";
NSMutableAttributedString *aString = [[NSMutableAttributedString alloc]initWithString:[NSString stringWithFormat:@"%@%@",leftString,@"金融街第九大道第七大院第五小区第三栋B座1021室第九大道第七大院第五小区第三栋B座1021室第九大道第七大院第五小区第三栋B座1021室"]];
[aString addAttribute:NSForegroundColorAttributeName value:[UIColor blackColor] range:NSMakeRange(0,leftString.length)];
[aString addAttribute:NSForegroundColorAttributeName value:kUIColorFromRGBWithAlapha(69, 69, 69, 1) range:NSMakeRange(5, aString.length-leftString.length)];
[aString addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:11] range:NSMakeRange(0, aString.length-leftString.length)];
/// 行间距 === 8
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
[paragraphStyle setLineSpacing:8];
[aString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, [aString length])];
label.attributedText= aString;
[self.view addSubview:label];
效果图
