设置label的行间距

UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(10, 80, kScreenWidth-20, 40)];
    label.numberOfLines = 0;
    label.font = [UIFont systemFontOfSize:20];
    label.text = @"服务员原指固定场所里提供一定范围内服务的人员,有男服务员,也有女服务员;现通常指旅馆、饭店、KTV、D厅等娱乐场所里,为客人提供必要服务的人员。服务员的基本职责是:迎接和招呼顾客;提供各种相应的服务;回答顾客的问询;为顾客解决困难;以最佳的情绪和态度对待顾客的各种不稳定情绪;及时处理顾客投诉,并给客人令人满意的答复。";
    [self.view addSubview:label];
    
    NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc]initWithString:label.text];;
    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc]init];
    [paragraphStyle setLineSpacing:5];
    [attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, label.text.length)];
    
    label.attributedText = attributedString;
    //调节高度
    CGSize size = CGSizeMake(label.bounds.size.width, 500000);
    
    CGSize labelSize = [label sizeThatFits:size];
    CGRect frame = label.frame;
    frame.size = labelSize;
    label.frame = frame;
    
    label.backgroundColor = [UIColor redColor];

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转载自blog.csdn.net/qishiai819/article/details/51364212