KeyValuePair<TKey,TValue>.Key 属性
定义
重要
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获取键/值对中的键。
public:
property TKey Key { TKey get(); };public TKey Key { get; }member this.Key : 'KeyPublic ReadOnly Property Key As TKey属性值
TKey
一个 TKey，它是 KeyValuePair<TKey,TValue> 的键。
示例
下面的代码示例演示如何使用 KeyValuePair<TKey,TValue> 结构枚举字典中的键和值。
此代码是为 类提供的更大示例的 Dictionary<TKey,TValue> 一部分。
// When you use foreach to enumerate dictionary elements,
// the elements are retrieved as KeyValuePair objects.
Console::WriteLine();
for each( KeyValuePair<String^, String^> kvp in openWith )
{
Console::WriteLine("Key = {0}, Value = {1}",
kvp.Key, kvp.Value);
}
// When you use foreach to enumerate dictionary elements,
// the elements are retrieved as KeyValuePair objects.
Console.WriteLine();
foreach( KeyValuePair<string, string> kvp in openWith )
{
Console.WriteLine("Key = {0}, Value = {1}",
kvp.Key, kvp.Value);
}
' When you use foreach to enumerate dictionary elements,
' the elements are retrieved as KeyValuePair objects.
Console.WriteLine()
For Each kvp As KeyValuePair(Of String, String) In openWith
Console.WriteLine("Key = {0}, Value = {1}", _
kvp.Key, kvp.Value)
Next kvp
注解
此属性为只读/只读。
