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NSString *contentStr = @"總以為,在最初的地方,有一個最原來的我,就也會有一個最原來的你"; 
   
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  //設(shè)置內(nèi)容 
  tempLabel.text = contentStr; 
  //設(shè)置字體顏色 
  tempLabel.textColor = [UIColor whiteColor]; 
  //設(shè)置字體大小 
  tempLabel.font = [UIFont systemFontOfSize:15.0]; 
  //設(shè)置文本是否多行顯示 
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  tempLabel.lineBreakMode = NSLineBreakByWordWrapping; 
  //設(shè)置UILabel根據(jù)文字自適應(yīng)高度 
  CGSize size = [tempLabel sizeThatFits:CGSizeMake(100, MAXFLOAT)]; 
  //設(shè)置frame 
  tempLabel.frame = CGRectMake(50, 100, 100, size.height); 
  [self.view addSubview:tempLabel]; 
  //設(shè)置label的行間距 
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  NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init]; 
  [paragraphStyle setLineSpacing:8]; 
  [attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, [contentStr length])]; 
  [tempLabel setAttributedText:attributedString]; 
  [tempLabel sizeToFit];