NSString *str = @"aaaa
aaaa
bbbb
aaaa";
NSString *str1 = @"bbbb"
"cccc"
"dddd";
NSString *str2 = @"eeeee"
@"ffff"
@"ggggg";
NSString *str3 = @"iiiii"
@"jjjjj"
@"kkkkk";
NSLog(@"%@ %@ %@ %@", str, str1, str2, str3);
输出是这样的:
aaaa aaaa bbbb aaaa
bbbbccccdddd
eeeeeffffggggg
iiiiijjjjjkkkkk
可以看到第一种是不一样的。