InitialValueExpressionCollection.First 方法

定义

检索集合中的第一项。

public:
 virtual IIterator<IKeyValuePair<Platform::String ^, Platform::String ^> ^> ^ First() = IIterable<IKeyValuePair<Platform::String ^, Platform::String ^> ^>::First;
IIterator<IKeyValuePair<winrt::hstring, winrt::hstring const&>> First();
public IIterator<KeyValuePair<string,string>> First();
function first()
Public Function First () As IIterator(Of KeyValuePair(Of String, String))

返回

IIterator<IKeyValuePair<String,String>>

IIterator<KeyValuePair<String,String>>

IIterator<IKeyValuePair<Platform::String,Platform::String>>

IIterator<IKeyValuePair<winrt::hstring,winrt::hstring>>

集合中的第一项。

实现

适用于