(void)setLabel{
NSString *title = @"请竖向排列!!";
UILabel *lable = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 20, 200)];
lable.center = self.view.center;
lable.textAlignment = NSTextAlignmentCenter;
[self.view addSubview:lable];
NSString *titleStr = @"";
for (int i=0; i<[title length]; i++)
{
NSString *str = [title substringWithRange:NSMakeRange(i, 1)];

  titleStr = [NSString stringWithFormat:@"%@\n%@",titleStr,str];

}
lable.text = titleStr;
lable.numberOfLines = [lable.text length];
}