从List到字典的转换，Foreach语句的问题

Question

我开始尝试将列表结构转换为字典，但遇到了一些麻烦。我正在修改我的前述语句<代码>

我现在用字典卡在这一行：moveMsg=p.connectionId。ToString() '%' p.playerPosition. x.() '%' p.player位置。ToString() '|';

我得到的错误是：Assets/Scripts/Server。cs（118,18）：错误CS1061:键入系统。收藏。通用的键值对

如何进行修改？

声明字典：公共字典

词典

// Ask player for their position

if (Time.time - lastMovementUpdate > movementUpdateRate)
{
    lastMovementUpdate = Time.time;
    string moveMsg = "ASKPOSITION|";
    foreach (KeyValuePair <int, Player> p in players)
        moveMsg += p.connectionId.ToString() + '%' + p.playerPosition.x.ToString() + '%' + p.playerPosition.y.ToString() + '|';
    moveMsg = moveMsg.Trim('|');
    Send(moveMsg, unreliableChannel, players);
}

球员级别

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class Player
{
    public string PlayerName;
    public GameObject Avatar;
    public int ConnectionId;
    public byte[] Tex;          // data coming from CanvasController
    public string Type;         // data coming from CanvasController
    public string Id;           // data coming from GameManager
    public int Strength;        // data coming from PlayerController
    public int Hitpoints;       // data coming from PlayerController
    public bool IsAlive;        // data coming from PlayerController

    // Initial method takes base arguments for testing
    public Player(string playerName, GameObject avatar, int connectionID)
    {
        PlayerName = playerName;
        Avatar = avatar;
        ConnectionId = connectionID;
    }
    // Overload method takes all animal arguments
    public Player(string playerName, GameObject avatar, int connectionID, byte[] tex, string type, string id, int strength, int hitpoints, bool isAlive)
    {
        PlayerName = playerName;
        Avatar = avatar;
        ConnectionId = connectionID;

        Tex = tex;
        Type = type;
        Id = id;
        Strength = strength;
        Hitpoints = hitpoints;
        IsAlive = isAlive;

        Debug.Log(id + " : " + type + " created with strength " + strength + ", hit points " + hitpoints + ", and a texture the size of " + tex.Length);
    }
}




Answer 1

KeyPairValue只包含两个属性Key和Value

https://msdn.microsoft.com/en-us/library/5tbh8a42（v=vs.110）

你试过：p.Key而不是p.ConnectionId和p.Value而不是p.PlayerPosition

编辑：我使用聚合fct编写了一个小lambda来简化代码。我传递默认值，然后对于dict中的每个项目，它将包含另一个字符串。我还使用字符串插值来避免字符串连接（$“{variable}”）。

    class Player
    {
        public Point Position { get; set; }
    }

    public void Test()
    {
        var players = new Dictionary<int, Player>();
        var msg = players.Aggregate(
              string.Empty, 
             (current, p) => current + 
                       $"{p.Key}%{p.Value.Position.X}%{p.Value.Position.Y}|");
    }

Answer 2

你在你的玩家类中有一个连接ID，但是可以访问连接ID。PS.奇怪的是，为什么它会被编译。顺便说一句，你可以使用播放器。Join-a linq扩展

Answer 3

因为您的变量p是一个KeyValuePair