UILabel修改行间距

//修改行间距
    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle
alloc]init];
    paragraphStyle.lineSpacing =
10;
    NSDictionary *attributes =
@{ NSFontAttributeName:[UIFont
systemFontOfSize:15],
NSParagraphStyleAttributeName:paragraphStyle};
    self.label.attributedText = [[NSAttributedString
alloc]initWithString:self.textFiled.text
attributes:attributes];