iOS开发--UILabel可以显示\n

 1 UILabel*label;
 2
 3  //设置换行
 4 label.lineBreakMode = UILineBreakModeWordWrap;
 5 label.numberOfLines = 0;
 6
 7 换行符还是“\n”
 8 比如NSString * xstring=@"lineone\nlinetwo"
 9
10 如果内容是从HTTP返回数据，且换行失败，可以考虑用以下方法测试：
11
12 NSString *myNewLineStr = @"\n";
13 myLabelText = [myLabelText stringByReplacingOccurrencesOfString:@"\\n" withString:myNewLineStr];
14 myLabel.text = myLabelText;

ref:http://laiguowei2004.blog.163.com/blog/static/36829000201281734249254/