「VB.NET」String.Emptyで文字列が空文字かどうかを判定する
書式
文字列 = String.Empty
文字列が空文字かどうかを判定します。
使用例
Module Module1
Public Sub Main()
Dim cftA As String = ""
Dim cftB As String = "study"
Console.WriteLine(cftA = String.Empty)
Console.WriteLine(cftB = String.Empty)
Console.ReadKey()
End Sub
End Module
Module Module1
Public Sub Main()
Dim cftA As String = ""
Dim cftB As String = "study"
Console.WriteLine(cftA = String.Empty)
Console.WriteLine(cftB = String.Empty)
Console.ReadKey()
End Sub
End Module
Module Module1 Public Sub Main() Dim cftA As String = "" Dim cftB As String = "study" Console.WriteLine(cftA = String.Empty) Console.WriteLine(cftB = String.Empty) Console.ReadKey() End Sub End Module
実行結果
True
False