[Unity][C#]int,string二维数组Dictionary通过关键字int变量找到字符串变量的值

这篇博客探讨了在Unity中如何利用C#的Dictionary数据结构，通过唯一的字符串关键字来查找并获取对应的int数值或字符串数组。文章展示了如何初始化二维数组和Dictionary，并提供了使用foreach和for循环进行查找的方法及示例代码。

二维数组，可以用于物品ID 和物品名称的预设置。

Dictionary<string, string> testDict = new Dictionary<string, string>() { ["key1"] = "value1", ["key2"] = "value2" };

var testDict = new Dictionary<string, string>() { ["key1"] = "value1", ["key2"] = "value2" };

查找的变量必须唯一

...
using System;
using System.Collections.Generic;
...

var testDict = new Dictionary<string, string>() { ["key1"] = "value1", ["key2"] = "value2" };
...
        if (test_array.ContainsKey(1))//通过int变量 来查找 对应 的字符串
        {
            string value = test_array[1];
            //Console.WriteLine(value);
            Debug.Log(value);//输出：test1
        }//https://www.codegrepper.com/code-examples/csharp/c%23+dictionary+get+value+by+key

        string value = "0";
        test_array.TryGetValue(2,out value);//https://www.dotnetperls.com/dictionary
        Debug.Log(value);
...


public static Dictionary<int, string> test_array =
        new Dictionary<int, string>()
        {
{1,"test1"},
{2,"test2"},
{5,"test2"},
{66,"test2"}
};
...

怎么通过字符串找到对应的int 数字或者 int 数组？

用foreach循环进行查找

...
using System.Collections.Generic;
...
    public List<int> list_k = new List<int>();
...
        int k = 0;string getValue = "test2";
        foreach (KeyValuePair<int, string> v in test_array)
        {
            if (!test_array.ContainsValue(getValue))
            {
                return;
            }

            if (v.Value == getValue)
            {
                list_k.Add(v.Key);//通过dictionary的value,字符串关键字 找到了 dictionary的key
            }
            //Debug.Log(k + "  ???: "+v.Key +"/"+ v.Value);
            k++;
        }

        string value_1 = "-1";
        if (list_k.Count > 0)
        {
            for (int i=0; i < list_k.Count; i++)
            {
                test_array.TryGetValue(list_k[i], out value_1);
                Debug.Log(i+"  : "+ list_k [i]+ "/"+ value_1);
            }
        }
...
public static Dictionary<int, string> test_array =
        new Dictionary<int, string>()
        {
{1,"test1"},
{2,"test2"},
{5,"test2"},
{66,"test2"}
};
...

输出

2
5
66

用for循环进行查找

...
        Debug.Log("  ????????????: " + test_array.Count);
        if (test_array.Count > 0)
        {
            int[] keys = new int[test_array.Keys.Count];
            test_array.Keys.CopyTo(keys, 0);
            for (int i = 0; i < keys.Length; ++i)
            {
                if (test_array[keys[i]] == getValue)
                {
                    Debug.Log(keys[i]+"/"+test_array[keys[i]]);//通过dictionary的value,字符串关键字 找到了 dictionary的key
                }
            }
        }
...
public static Dictionary<int, string> test_array =
        new Dictionary<int, string>()
        {
{1,"test1"},
{2,"test2"},
{5,"test2"},
{66,"test2"}
};
...

输出