📅  最后修改于: 2022-03-11 14:57:16.499000             🧑  作者: Mango
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
txt1.Disabled = True
End Sub
Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
txt1.Disabled = False
End Sub