Text ' add new key and item range If Not dict.Exists(strVal) Then dict.Add strVal, .Rows(i) ' merge item ranges of existing key Else Set rngTemp = Union(.Rows(i), dict(strVal)) dict.Remove strVal ' simply updating the item in a loop will cause a run-time error! dict.Add ...
在一个Dictionary对象中设置或者返回所指定key的item。对于集合,则根据所指定的key返回一个item。读/写。 代码示例: 代码语言:javascript 复制 Subdic_item()Dim dic,aa Set dic=CreateObject("Scripting.Dictionary")dic.Add"1","苹果"dic.Add"2","香蕉"dic.Add"3","雪梨"MsgBox dic.Item("3")'返回Item,...
字典<TKey,TValue>。ValueCollection Dictionary<TKey,TValue> Dictionary<TKey,TValue> 构造函数 属性 容量 比较器 计数 Item[] 键 值 方法 显式接口实现 EqualityComparer<T> HashSet<T>。枚举 数 HashSet<T> IAsyncEnumerable<T> IAsyncEnumerator<T> ...
The property is retrieved andkeydoes not exist in the collection. Examples The following code example uses theItem[]property (the indexer in C#) to retrieve values, demonstrating that aKeyNotFoundExceptionis thrown when a requested key is not present, and showing that the value associated with ...
key 為null。 ArgumentException 正在指定值,而且 key 是無法指派給 Dictionary<TKey,TValue> 的TKey 索引鍵型別的型別。 -或- 正在指定值,而且 value 是無法指派給 Dictionary<TKey,TValue> 的TValue 實值型別的型別。 範例 下列程式代碼範例示範如何使用 IDictionary.Item[] 屬性(C#) System.Collections....
이 예제에서는 Item[] 속성(C#의 인덱서)을 사용하여 값을 검색하고 요청된 키가 없을 때 KeyNotFoundException throw되고 키와 연결된 값을 바꿀 수 있음을 보여 줍니다....
items(), key=lambda item: item[1]) [(2, 'Jack'), (4, 'Jane'), (1, 'Jill'), (3, 'Jim')] In this example, you try out two ways of passing a key parameter. The key parameter accepts a callback function. The function can be a normal function identifier or a lambda ...
The example demonstrates that the Add method throws an ArgumentException when attempting to add a duplicate key.The example uses the Item[] property (the indexer in C#) to retrieve values, demonstrating that a KeyNotFoundException is thrown when a requested key is not present, and showing that...
The syntax for returning an item is:value = dictionaryobject.Item(key)dictionaryobject Use: Required Data Type: Dictionary object A reference to a Dictionary object. key Use: Required Data Type: String A unique string key for this Dictionary object. item Use: Optional Data Type: Any The data...
KeyedCollection<TKey,TItem> 屬性 C# 閱讀英文 儲存 新增至集合 新增至計劃 Share via Facebookx.comLinkedIn電子郵件 列印 參考 意見反應 定義 命名空間: System.Collections.ObjectModel 組件: System.ObjectModel.dll 來源: KeyedCollection.cs 取得KeyedCollection<TKey,TItem>的查閱字典。