在VB.NET中合并运算符和条件运算符
可能重复:
VB.NET中是否有条件的三元运算符?
嗨,大家好,我们可以在C#中使用VB.NET中的Coalesce运算符(??)和条件三元运算符(:)吗?
我想你可以使用内联if语句来关闭它:
//C#
int x = a ? b : c;
'VB.Net
Dim x as Integer = If(a, b, c)
Sub Main()
Dim x, z As Object
Dim y As Nullable(Of Integer)
z = "1243"
Dim c As Object = Coalesce(x, y, z)
End Sub
Private Function Coalesce(ByVal ParamArray x As Object())
Return x.First(Function(y) Not IsNothing(y))
End Function
仅供参考,合并字符串操作符
Private Function Coalesce(ByVal ParamArray Parameters As String()) As String
For Each Parameter As String In Parameters
If Not Parameter Is Nothing Then
Return Parameter
End If
Next
Return Nothing
End Function
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