设置Label行间距

-(void)fuwenbenLabel:(UILabel *)labell FontNumber:(id)font AndLineSpacing:(float)lineSpacing

{
    //富文本设置文字行间距
    NSMutableParagraphStyle *paragraphStyle = [[ NSMutableParagraphStyle alloc ]init];
    paragraphStyle .lineSpacing = lineSpacing;

    NSDictionary *attributes = @{ NSFontAttributeName :font, NSParagraphStyleAttributeName :paragraphStyle};
    labell .attributedText = [[ NSAttributedString alloc ]initWithString:labell .text attributes :attributes];
}

 //获取设置文本间距以后的高度
            CGRect huiDaSize = [cell .fabiaoHuifuContentLabel .attributedText boundingRectWithSize :CGSizeMake( 2 7 6 , MAXFLOAT) options : NSStringDrawingUsesLineFragmentOrigin context :nil ];