iOS 行间距

NSMutableAttributedString *attributedString1 = [[NSMutableAttributedString alloc] initWithString:item];

NSMutableParagraphStyle *paragraphStyle1 = [[NSMutableParagraphStyle alloc] init];

//设置行间距

[paragraphStyle1 setLineSpacing:6.5];

//设置对齐方式

paragraphStyle1.alignment = NSTextAlignmentCenter;

[attributedString1 addAttribute:NSParagraphStyleAttributeNamevalue:paragraphStyle1 range:NSMakeRange(0, [item length])];

[_BGTitle setAttributedText:attributedString1];

[_BGTitle sizeToFit];