As raju dasa said, you could according the key to update the value.If you want to use Add method, first you need to use ContainsKey method to check whether the key is exist, then remove the existing KeyValuePair, finally, use Add method to add new KeyValuePair. Code as below:Copy ...
Adds the specified key and value to the dictionary. Namespace: System.Collections.Generic Assembly: mscorlib (in mscorlib.dll) Syntax C# 复制 public void Add( TKey key, TValue value ) Parameters key Type: TKey The key of the element to add. value Type: TValue The value of t...
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Determines whether the dictionary contains an element that has the specified key. Equals(Object) Determines whether the specified object is equal to the current object. (Inherited fromObject) GetEnumerator() Returns an enumerator that iterates through theReadOnlyDictionary<TKey,TValue>. ...
5、add key,value5、移除键:obj.remove("key") , obj.removeall()6、判定键是否存在:obj.Exists("key")7、遍历:先把键和值各自赋给一个变量,构成一维数组,再用FOR遍历a=d.keysb=d.Items'For x=0 to d.count-1 '或 从上到下遍历,For x=d.Count-1 To 0 Step -1 '从下到上遍历 wan : abc...
Determines whether the dictionary contains an element that has the specified key. Equals(Object) Determines whether the specified object is equal to the current object. (Inherited from Object) GetEnumerator() Returns an enumerator that iterates through the ReadOnlyDictionary<TKey,TValue>. GetHas...
Determines whether the dictionary contains an element that has the specified key. Equals(Object) Determines whether the specified object is equal to the current object. (Inherited from Object) GetEnumerator() Returns an enumerator that iterates through the ReadOnlyDictionary<TKey,TValue>. GetHas...
KeyedCollection<TKey,TItem> 建構函式 屬性 比較子 字典 Item[] 方法 ObservableCollection<T> ReadOnlyCollection<T> ReadOnlyDictionary<TKey,TValue>。KeyCollection ReadOnlyDictionary<TKey,TValue>。ValueCollection ReadOnlyDictionary<TKey,TValue>
1.To check, adjust, or determine by comparison with a standard (the graduations of a quantitative measuring instrument):calibrate a thermometer. 2. a.To make corrections in; adjust:calibrated the polling procedures to ensure objectivity.
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