UILabel+Extension.h

import <UIKit/UIKit.h>

@interface UILabel (Extension)
//竖直列

• (void)setColumnSpace:(CGFloat)columnSpace;
  //横行
• (void)setRowSpace:(CGFloat)rowSpace;
  @end

UILabel+Extension.m

import "UILabel+Extension.h"

import <CoreText/CoreText.h>

@implementation UILabel (Extension)

• (void)setColumnSpace:(CGFloat)columnSpace
  {
  NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithAttributedString:self.attributedText];
  //调整间距
  [attributedString addAttribute:(__bridge NSString *)kCTKernAttributeName value:@(columnSpace) range:NSMakeRange(0, [attributedString length])];
  self.attributedText = attributedString;
  }

• (void)setRowSpace:(CGFloat)rowSpace
  {
  self.numberOfLines = 0;
  NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithAttributedString:self.attributedText];
  //调整行距
  NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
  paragraphStyle.lineSpacing = rowSpace;
  paragraphStyle.baseWritingDirection = NSWritingDirectionLeftToRight;
  [attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, [self.text length])];
  self.attributedText = attributedString;
  }
  @end