Sub 罫線_二重線_を引く()
With Range("B2:C3")
.Borders(xlEdgeTop).LineStyle = xlDouble '上
.Borders(xlEdgeBottom).LineStyle = xlDouble '下
.Borders(xlEdgeRight).LineStyle = xlDouble '右
.Borders(xlEdgeLeft).LineStyle = xlDouble '左
.Borders(xlInsideVertical).LineStyle = xlDouble '中の縦
.Borders(xlInsideHorizontal).LineStyle = xlDouble '中の横
End With
End Sub