调整UILabel行高间距

UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 100, 320, 200)];

[label setBackgroundColor:[UIColor blackColor]];

[label setTextColor:[UIColor whiteColor]];

[label setNumberOfLines:0];

NSString *labelText = @"可以自己按照宽高，字体大小，来计算有多少行。。然后。。。每行画一个UILabel。。高度自己可以控制把这个写一个自定义的类。 ";

NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:labelText];

NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];

#define LINESPACE 20

[paragraphStyle setLineSpacing:LINESPACE];//调整行间距

[attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, [labelText length])];

label.attributedText = attributedString;