知识片段---label行间距设置

//设置行间距
    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStylealloc]init];
    paragraphStyle.lineSpacing= 8;
    NSDictionary *attributes = @{ NSFontAttributeName:[UIFontsystemFontOfSize:14],NSParagraphStyleAttributeName:paragraphStyle};

    self.describe.attributedText= [[NSAttributedStringalloc]initWithString:homePageModel.desattributes:attributes];