Powershell:使用一个下拉框中的选项作为另一个下拉框中的变量

Add-Type -AssemblyName System.Windows.Forms

# 创建一个窗体
$form = New-Object System.Windows.Forms.Form
$form.Text = "下拉框示例"
$form.Size = New-Object System.Drawing.Size(300, 200)

# 创建一个下拉框1
$dropdown1 = New-Object System.Windows.Forms.ComboBox
$dropdown1.Location = New-Object System.Drawing.Point(50, 50)
$dropdown1.Size = New-Object System.Drawing.Size(200, 25)
$dropdown1.Items.Add("选项1")
$dropdown1.Items.Add("选项2")
$dropdown1.Items.Add("选项3")
$form.Controls.Add($dropdown1)

# 创建一个下拉框2
$dropdown2 = New-Object System.Windows.Forms.ComboBox
$dropdown2.Location = New-Object System.Drawing.Point(50, 100)
$dropdown2.Size = New-Object System.Drawing.Size(200, 25)
$form.Controls.Add($dropdown2)

# 添加下拉框1的选择变化事件
$dropdown1.add_SelectedIndexChanged({
    # 根据下拉框1的选择，更新下拉框2的选项
    $selectedItem = $dropdown1.SelectedItem.ToString()
    $dropdown2.Items.Clear()
    
    switch ($selectedItem) {
        "选项1" {
            $dropdown2.Items.Add("选项A")
            $dropdown2.Items.Add("选项B")
            $dropdown2.Items.Add("选项C")
        }
        "选项2" {
            $dropdown2.Items.Add("选项X")
            $dropdown2.Items.Add("选项Y")
            $dropdown2.Items.Add("选项Z")
        }
        "选项3" {
            $dropdown2.Items.Add("选项M")
            $dropdown2.Items.Add("选项N")
            $dropdown2.Items.Add("选项O")
        }
    }
})

# 显示窗体
$form.ShowDialog()