__weak AFHTTPRequestOperation *commFriendsRequest = [completedRequests objectAtIndex:1];
        if(!commFriendsRequest.error&&commFriendsRequest.responseData){
            NSDictionary *commDic = [NSJSONSerialization JSONObjectWithData:commFriendsRequest.responseData options:NSJSONReadingMutableContainers error:NULL];//泄露46.2%
            int status1 = [[commDic objectForKey:@"status"]intValue];
            if(status1 == kSuccessCode){
                NSArray *commFriendsArray = [commDic objectForKey:@"data"];
                if(commFriendsArray&&commFriendsArray.count){
                    NSMutableArray *userItems = [NSMutableArray arrayWithCapacity:commFriendsArray.count];//泄露30.8%
                    for(NSDictionary *dic in commFriendsArray){
                        userItem *item = [[userItem alloc]initFromServer:dic];//23.1%
                        [userItems addObject:item];
                    }
                    if(profile){//共同好友与资料都成功
                        profile.commonFriends = userItems;
                        successBlock(profile);
                    }else{
                        if(status0==kSuccessCode){//共同好友
                            successBlock(userItems);
                        }else{
                            NSError *error = [NSError errorWithDomain:kErrorDomain code:status0 userInfo:nil];
                            failedBlock(error);
                        }
                    }
                }else if(status0==kSuccessCode){//无共同好友，有profile
                    successBlock(profile);
                }
            }else{
                if(status0==kSuccessCode){//资料有共同好友失败
                    successBlock(profile);
                }else{//都失败了
                    NSError *error = [NSError errorWithDomain:kErrorDomain code:status1 userInfo:nil];
                    failedBlock(error);
                }
            }
        }else{
            failedBlock(commFriendsRequest.error);
        }

在ARC底下Instruments显示就这么一块泄露，我看了半天不知道哪些的不对。

这块代码是在底下这个block里面的。

[client enqueueBatchOfHTTPRequestOperations:@[profileOperation,commFriendsOperation] progressBlock:^(NSUInteger finished, NSUInteger total){} completionBlock:^(NSArray *completedRequests){
//Code above placed here
}]

Thanks in advance.