如何將簡單的字符串寫入iPhone上的文件？

Question

簡單的問題：

我有一個很大的字符串，我想寫入應用程序的文檔文件夾中的文件。我該如何做一個簡單的文件創建/寫入？

Answer 1

如果你有一個NSString，你可以做

NSString *myString; //Assuume the string you want to write is this 
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
NSString *documentsDirectory = [paths objectAtIndex:0]; 
NSString *path = [documentsDirectory stringByAppendingPathComponent:@"myfile.txt"]; 
[myString writeToFile:path atomically:YES]; 

Answer 2

請看NSString的writeToFile:atomically:encoding:error:方法。用法是這樣的：

[myString writeToFile:myPath atomically:YES encoding:NSUTF8StringEncoding error:&myError]; 

Answer 3

NSError *error = nil; 
[@"foo bar baz" writeToFile:@"someFileName" atomically:NO encoding:NSUTF8StringEncoding error:&error];