Question

我正在测试一个应用程序，我用TcpClient连接到服务器，发送字符串并等待响应。这在步进应用程序时有效，但在没有断点的情况下运行时，结果为空。

具体来说：我想联系TS3服务器。这是代码：

class Program
{
    static void Main(string[] args)
    {
        var response = new ServerConnection().GetResponse();
        Console.WriteLine("Response erhalten!");
        Console.WriteLine(response);
        Console.ReadKey();
    }
}

public class ServerConnection
{
    public string GetResponse()
    {
        string result = "";
        using (var client = new TcpClient())
        {
            client.Connect(IPAddress.Parse("193.111.136.17"), 10011);
            using (var ns = client.GetStream())
            {
                byte[] bytesToSend;
                bytesToSend = Encoding.ASCII.GetBytes("help");
                ns.Write(bytesToSend, 0, bytesToSend.Length);
                byte[] response = new byte[1024];
                if (ns.DataAvailable)
                    ns.Read(response, 0, response.Length);

                using (var ms = new MemoryStream(response))
                {
                    using (var sr = new StreamReader(ms))
                    {
                        result = sr.ReadToEnd();
                    }
                }
            }
        }

        return result;
    }
}

任何人都可以告诉我，为什么在正常运行时\0充满了result（导致// Arena RPG.cpp : Defines the entry point for the console application. // Created by Logan Daniels #include "stdafx.h" #include <iostream> #include <iomanip> #include <string> #include <fstream> using namespace std; //Prototypes void introScreen(); string loadGame(); string newGame(string, string, string); int exit(); //constant global Variables const string knight = "Knight"; const string mage = "Mage"; const string assasin = "Assasin"; string name, equipment, characterClass; string gold; int main() { introScreen(); return 0; } void introScreen() { int option; cout << "Welcome to Arena!\n" << "Please select an option from the list\n" << "1.Load\n2.New Game\n3.Exit\n" << "Number option: "; cin >> option; if (option == 1) loadGame(); else if (option == 2) newGame(knight, mage, assasin); else if (option == 3) exit(); } string newGame(const string knight, const string mage, const string assasin) { system("CLS"); string name, equipment; int gold = 100; string characterClass; // used in loop cout << "Welcome to the character creation menu!\n" << "Enter your name\nName: "; cin.ignore(); getline(cin, name); cout << "\nPick a class.\n1.Knight, 2.Assasin, 3.Mage\n"; cin >> characterClass; while (characterClass != knight && characterClass != mage && characterClass != assasin) { cout << "That is an invalid character class\n"; cout << "\nPick a class.\n1.Knight, 2.Assasin, 3.Mage\n"; cin >> characterClass; } system("CLS"); cout << "Welcome to the arena!\nIts time ot begin your adventure " << name << endl << "Hit enter when redy!\n"; ofstream saveFile; //New game file saveFile.open("Game Save Data.txt"); saveFile << name << endl; saveFile << characterClass << endl; saveFile << gold << endl; saveFile << equipment << endl; saveFile.close(); system("pause"); return name, characterClass, gold, equipment; } string loadGame() { string name, characterClass, gold, equipment; ifstream saveFile; saveFile.open("Game Save Data"); saveFile >> name; cout << name << endl; saveFile >> characterClass; cout << characterClass << endl; saveFile >> gold; cout << gold << endl; saveFile >> equipment; cout << equipment << endl; cout << name << endl << characterClass << endl << gold << endl << equipment << endl; system("pause"); return name, equipment, characterClass, gold; } int exit() { return 0; }的空白文本），但是在执行此操作时包含一些“有用”的文字？这让我发疯了... aaarg !!

提前致谢！

Answer 1

NetworkStream.Read方法阻塞，无需检查NetworkStream.DataAvailable属性的值。

如果您的代码“执行得太快”，NetworkStream.DataAvailable属性的值可能为false，因此不会从流中读取数据。

通过TcpClient连接到服务器时出现问题

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