代码如下：
CGFloat heih = 20;
NSString * cLabelString = @" 这是测试UILabel行间距的text。这是测试UILabel行间距的text。\n 这是测试UILabel行间距的text。\n 这是测试UILabel行间距的text。这是测试UILabel行间距的text。这是测试UILabel行间距的text。这是测试UILabel行间距的text。";
UILabel * cLabel = [[UILabel alloc]initWithFrame:CGRectMake(20, heih, 280, 200)]; cLabel.numberOfLines = 0;
cLabel.font = [UIFont fontWithName:fontName size:16];
cLabel.textColor = [UIColor grayColor];
NSMutableAttributedString * attributedString1 = [[NSMutableAttributedString alloc] initWithString:cLabelString]; NSMutableParagraphStyle * paragraphStyle1 = [[NSMutableParagraphStyle alloc] init]; [paragraphStyle1 setLineSpacing:8]; [attributedString1 addAttribute:NSParagraphStyleAttributeName value:paragraphStyle1 range:NSMakeRange(0, [cLabelString length])]; [cLabel setAttributedText:attributedString1]; [cLabel sizeToFit]; [self.view addSubview:cLabel]; 想了解更多ios方面的知识请加qq：2296575155
