//个人觉得 sdk开发时候 最好不要用第三方 最好可以用最原始的方法 替换 此处仅做sdk封装使用  留存 +(void)GET:(NSString *)urlStr params:(NSDictionary *)params  sucess:(void (^)(NSURLSessionDataTask *task, id responseObject))sucess failure:(void (^)(NSURLSessionDataTask *task, NSError * error))failure{    urlStr = [self URLEncodedStringValue:params url:urlStr];    NSURL *URL = [NSURL URLWithString:urlStr];        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL];    [request setHTTPMethod:@"GET"];        NSURLSession *session = [NSURLSession sharedSession];    __block NSURLSessionDataTask *task= nil;    task = [session dataTaskWithRequest:request                      completionHandler:            ^(NSData *data, NSURLResponse *response, NSError *error) {                                if (error) {                    failure(task,error);                } else {                    NSError *jsonError = nil;                    id notesJSON =                    [NSJSONSerialization JSONObjectWithData:data                                                    options:NSJSONReadingAllowFragments                                                      error:&jsonError];                    if (!jsonError) {                        if (sucess) {                            sucess(task,notesJSON);                        }                    } else {                        if (failure) {                            failure(task,jsonError);                        }                                            }                }            }];        [task resume];}+ (NSString *)URLEncodedStringValue:(NSDictionary *)Parameter url:(NSString *)urlStr{    if (Parameter) {        urlStr = [urlStr stringByAppendingString:@"?"];        NSArray *keys =[Parameter allKeys];        for (int i=0;i