【代碼筆記】豎排文字，代碼筆記

【代碼筆記】豎排文字，代碼筆記

一，代碼。

- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view.            NSString *str = @"你好啊";    NSMutableArray *arr = [[NSMutableArray alloc] init];    for (int i = 0; i<str.length ; i++) {        NSString *str1 = [str substringWithRange:NSMakeRange(i, 1)];        NSString *str2 = [str1 stringByAppendingString:@"\n"];                [arr addObject:str2];    }    NSString *str3;    for (int i = 0; i<arr.count - 1; i++) {        if (i == 0) {            str3 = [arr[i] stringByAppendingString:arr[i+1]];        }else{            str3 = [str3 stringByAppendingString:arr[i+1]];        }    }    NSLog(@"%@",str3);    }

 

二，輸出。

2015-10-20 14:25:43.161 豎排文字[8130:197228] 你好