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VB.netでこれに相当するものは何ですか
int? x; int s; s = x ?? 5;
if() 演算子は vb の null 合体演算子です。
s = If(x, 5)
vb.net には、null 許容宣言のための 3 つの方法があります。
Dim x? As Integer Dim x As Integer? Dim x As Nullable(Of Integer) Dim s As Integer s = If(x, 5)