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C#のDictionary【Unity, C#】

Last updated at Posted at 2015-07-29

C#でDictionaryを使用したので、メモ。

名前空間

using System.Collections.Generic;

宣言

Dictionary<GameObject, Vector3> temp;

コンストラクタ

Dictionary<string, string> dic = new Dictionary<string, string> ();

初期値を設定する場合

Dictionary<string, string> dic = new Dictionary<string, string> () {
		{"key0", "value0"},
		{"key1", "value1"}
	};

要素の追加

dic.Add ("key2", "value2");
dic.Add ("key3", "value3");

要素の取り出し

Debug.Log (dic ["key0"]);

キーの列挙

foreach (string key in dic.Keys) {
	Debug.Log (key);
}

要素の列挙

foreach (string value in dic.Values) {
	Debug.Log (value);
}

キーと要素の列挙

foreach (KeyValuePair<string, string> pair in dic) {
	Debug.Log (pair.Key + " : " + pair.Value);
}

要素数

Debug.Log (dic.Count);

要素列挙の順番

Addの順番通りに出力されます。
※このサンプルがたまたまAddと同じ順番で出力されているだけなのかもしれません。

Dictionary<string, string> temp = new Dictionary<string, string> ();
for (int i = 0; i < 10; i++) {
	temp.Add ("key" + i.ToString(), "value" + i.ToString());
}

foreach (KeyValuePair<string, string> pair in temp) {
	Debug.Log(pair.Key + " : " + pair.Value);
}

結果
スクリーンショット 2015-08-04 14.25.37.png

要素の削除

dic.Remove ("key0");
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