場(chǎng)景

有時(shí)候我們獲取的是key，比如獲取的是12345這樣的數(shù)字，要實(shí)現(xiàn)對(duì)應(yīng)的value比如是中文的狀態(tài)的映射。

注：

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實(shí)現(xiàn)

首先新建一個(gè)工具類，這里是StepStateHelper,然后設(shè)置其單例實(shí)現(xiàn)

using System; using System.Collections.Generic; using System.Linq; using System.Text;namespace Badao.Entity.Helper {public class StepStateHelper{#region 單例實(shí)現(xiàn)private static string _lockFlag = "StepStateHelperLock";private static StepStateHelper _instance;private StepStateHelper(){}public static StepStateHelper Instance{get{lock(_lockFlag){if (_instance == null){_instance = new StepStateHelper();}return _instance;}}}#endregion} }

然后定義一個(gè)私有的Dicktionary類型的字段，定義好鍵值對(duì)的映射關(guān)系

??????? private Dictionary<short, string> _dicStepStates = new Dictionary<short, string>(){{ 0x04, "霸道" },{ 0x05, "流氓" },{ 0x06, "氣質(zhì)" },};

鍵值對(duì)的內(nèi)容根據(jù)自己的需要去確定

然后再定義一個(gè)public的屬性用來(lái)對(duì)上面字段進(jìn)行獲取

??????? public Dictionary<short, string> DicStepStates{get{return _dicStepStates;}}

完整示例代碼

using System; using System.Collections.Generic; using System.Linq; using System.Text;namespace Badao.Entity.Helper {public class StepStateHelper{#region 單例實(shí)現(xiàn)private static string _lockFlag = "StepStateHelperLock";private static StepStateHelper _instance;private StepStateHelper(){}public static StepStateHelper Instance{get{lock(_lockFlag){if (_instance == null){_instance = new StepStateHelper();}return _instance;}}}#endregion#region 字段定義private Dictionary<short, string> _dicStepStates = new Dictionary<short, string>(){{ 0x04, "霸道" },{ 0x05, "流氓" },{ 0x06, "氣質(zhì)" },};#endregion#region 屬性定義public Dictionary<short, string> DicStepStates{get{return _dicStepStates;}}#endregion} }

然后就可以在代碼中通過(guò)

string StepState = ""; StepStateHelper.Instance.DicStepStates.TryGetValue((short)obj, out StepState);

去通過(guò)key即obj來(lái)獲取value即StepState

總結(jié)

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