A'FNetwork返回转化

+ (void (^)(NSURLSessionDataTask * task, id returnData))successCallBack:(void (^)(id returnData))successBlock{
    return ^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        if (!successBlock) return ;
        successBlock([NSDictionary replaceNullValueDictionary:[NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:nil]]);
    };
}

虽然AFNetwork有返回解析，但是会不准，一般是自己来解析，加多这一句

[NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:nil]

因为从断点可以看出

responseObject其实是Data类型，必须要转，否则不能直接用