writing 'TAB' character to a text file in objective-c?

What do I need to 开发者_StackOverflow中文版use to write out my TAB character?

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Use the escape character \t in a string literal to print a tab:

NSString *string = @"This is a tab:\tThis is tabbed!\n";

You can put \t in any string literal and do with it what you want from there: write it to a file, to STDOUT, whatever.