iOS Label设置行间距

-(void)setLabelSpace:(UILabel*)label withSpace:(CGFloat)space withFont:(UIFont*)font {

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

        paraStyle.lineBreakMode = NSLineBreakByCharWrapping;

        paraStyle.alignment = NSTextAlignmentLeft;

        paraStyle.lineSpacing = space; //设置行间距

        paraStyle.hyphenationFactor = 1.0;

        paraStyle.firstLineHeadIndent = 0.0;

        paraStyle.paragraphSpacingBefore = 0.0;

        paraStyle.headIndent = 0;

        paraStyle.tailIndent = 0;

        //设置字间距 NSKernAttributeName:@1.5f

        NSDictionary *dic = @{NSFontAttributeName:font, NSParagraphStyleAttributeName:paraStyle, NSKernAttributeName:@0.0f

                              };

        NSAttributedString *attributeStr = [[NSAttributedString alloc] initWithString:label.text attributes:dic];

        label.attributedText = attributeStr;

}