NSMutableParagraphStyle *paragraphStyle =[[NSMutableParagraphStyle alloc]init]; paragraphStyle.lineSpacing=50;
NSDictionary*attributes = @{ NSFontAttributeName:[UIFont systemFontOfSize:14], NSParagraphStyleAttributeName:paragraphStyle};
label.attributedText=[[NSAttributedString alloc]initWithString:label.text attributes:attributes];}
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