using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Linq;
public class XXX : MonoBehaviour {
public struct playerDataStruct
{
public string nickName;
public int age;
public int score;
}
private Dictionary<string, playerDataStruct> playerDataDictionary = new Dictionary<string, playerDataStruct>();
private playerDataStruct tempPlayerDataStruct = new playerDataStruct();
void Start ()
{
tempPlayerDataStruct.nickName = "Warrior";
tempPlayerDataStruct.age = 18;
tempPlayerDataStruct.score = 1000;
playerDataDictionary.Add("John", tempPlayerDataStruct);
tempPlayerDataStruct.nickName = "Fighter";
tempPlayerDataStruct.age = 20;
tempPlayerDataStruct.score = 2000;
playerDataDictionary.Add("Peter", tempPlayerDataStruct);
//----------------------------------------------------------------------------------------------------------------
if (playerDataDictionary.Values.Any(x => x.age >= 20) == true)
{
Debug.Log("本遊戲有大於20歲以上的玩家。");
}
Debug.Log("本遊戲內小於20歲的玩家第一人為：" + playerDataDictionary.Where(x => x.Value.age < 20).Select(x => x.Key).FirstOrDefault());
}
void Update ()
{
}
}
一般比較常見的情況有：1.使用Value去逆向尋找Key。
2.判斷此Dictionary內是否包含該Key或是該Value。
3.直接尋找或比對Structure內的某一個屬性。
自己所知的對應方式：
依據條件把找到Key的全都取出
playerDataDictionary.Where(x => x.Value.age < 20).Select(x => x.Key)
取出找到的第一個Key
playerDataDictionary.Where(x => x.Value.age > 20).Select(x => x.Key).FirstOrDefault())
playerDataDictionary.FirstOrDefault(x => x.age >= 20).Key
判斷有無該Key包含在內
playerDataDictionary.ContainsKey("Peter")
判斷有無該Value的屬性包含在內
playerDataDictionary.Values.Any(x => x.age >= 20)
