[iPhone]获取document目录路径

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentDirectory = [paths objectAtIndex:0];
    NSString *filename = [documentDirectory stringByAppendingPathComponent:@"textFile.txt"];
    NSLog(@"filename = %@", filename);
    NSLog(@"documentDirectory = %@", documentDirectory);


    NSString *tempPath = NSTemporaryDirectory();
    NSString *tempFile = [tempPath stringByAppendingPathComponent:@"tempFile.txt"];

    NSLog(@"tempPath = %@", tempPath);
    NSLog(@"tempFile = %@", tempFile);