用代码在Xcode中创建xml文件

NSData *data = [[NSData alloc] init];//initWithContentsOfURL:url];
    
    NSArray *array = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *str = [array objectAtIndex:0];
    
    NSString *path = [str stringByAppendingPathComponent:@"xml.xml"];
    
    if(![[NSFileManager defaultManager] fileExistsAtPath:path])
    {
        [data writeToFile:path atomically:YES];

    }

如果是在工程内操作,一般步骤是在source选择红色的Header File,然后把后缀名改成.xml