这与我之前关于 FTP 时间戳的问题有关。我正在编写一个脚本,通过简化电脑设置来帮助我以及其他人的工作变得更好。现在一切都很完美,除了我想让它更加自动化。现在它一次只允许做一件事。我希望能够选择多个数字并让它一个接一个地运行它们。
这需要在 Windows 7 中运行,无需导入任何额外的模块。
这是我到目前为止所拥有的:
echo ""
$answer = read-host "Select a number"
echo ""
if ($answer -eq 1){uninstall}
if ($answer -eq 2){flashjava}
if ($answer -eq 3){reader}
if ($answer -eq 4){firefox}
if ($answer -eq 5){chrome}
if ($answer -eq 6){office}
if ($answer -eq 7){reader}
if ($answer -eq 8){updates}
if ($answer -eq 9){exit}
else {write-host -ForegroundColor red "Invalid Selection"
sleep 2
mainmenu
}
echo ""
我不想选择选项 2(例如),而是放手,然后点击选项 3,依此类推,我想输入“2,3”(不带引号)并让它依次点击两个函数。
我研究过 foreach 循环,但无法让它工作。
echo ""
$num = read-host "Select a number"
echo ""
$num.split(",")
ForEach($answer in $num){
if ($answer -eq 1){uninstall}
if ($answer -eq 2){flashjava}
if ($answer -eq 3){reader}
if ($answer -eq 4){firefox}
if ($answer -eq 5){chrome}
if ($answer -eq 6){office}
if ($answer -eq 7){reader}
if ($answer -eq 8){updates}
if ($answer -eq 9){exit}
}
else {write-host -ForegroundColor red "Invalid Selection"
sleep 2
mainmenu
}
echo ""
我知道 Else 语句会捕获除单个 1-9 之外的任何内容。我已经尝试注释掉该部分,但仍然没有任何结果。如果我选择一个数字而不是多个数字,它会起作用。我还尝试将 if 语句中的数字放在引号中。它还会显示我在运行该函数或退出之前选择的数字。我不想显示任何输出。
谢谢!
更新:环顾四周后,我找到了开关参数。看起来效果很好!
do {
do {
cls
write-host ""
write-host "****************************"
write-host "** Main Menu **"
write-host "****************************"
write-host ""
write-host "1 - Uninstall Bundled Apps"
write-host "2 - Install Flash & Java"
write-host "3 - Install Adobe Reader"
write-host "4 - Install Firefox"
write-host "5 - Install Chrome"
write-host "6 - Install Office 365"
write-host "7 - Install All"
write-host ""
write-host "8 - Check for Installer Updates"
write-host ""
write-host "9 - Exit"
write-host ""
$answer = read-host "Select number(s)"
$ok = $answer -match '[123456789]+$'
if ( -not $ok) {write-host "Invalid selection"
sleep 2
write-host ""
}
} until ($ok)
switch -Regex ( $answer ) {
"1" {uninstall}
"2" {flashjava}
"3" {reader}
"4" {firefox}
"5" {chrome}
"6" {o365}
"7" {uninstall}
"8" {updates}
}
} until ( $answer -match "9" )
}
其实你们真的很亲密。主要问题是
$num.Split()
返回数组,但不修改 $num
,因此当您在 $num
循环中使用 foreach()
时,您正在使用原始值。看看这里的变化:
echo ""
$num = read-host "Select a number"
echo ""
$nums = $num.split(",")
ForEach($answer in $nums){
if ($answer -eq 1){uninstall}
if ($answer -eq 2){flashjava}
if ($answer -eq 3){reader}
if ($answer -eq 4){firefox}
if ($answer -eq 5){chrome}
if ($answer -eq 6){office}
if ($answer -eq 7){reader}
if ($answer -eq 8){updates}
if ($answer -eq 9){exit}
}
# else {write-host -ForegroundColor red "Invalid Selection"
# sleep 2
# mainmenu
# }
# commented out because this else no longer corresponds to anything
echo ""
现在稍微清理一下,让我们用
switch
来看看:
echo ""
$num = read-host "Select a number"
echo ""
$nums = $num.split(",")
ForEach($answer in $nums){
switch ($answer) {
1 {uninstall}
2 {flashjava}
3 {reader}
4 {firefox}
5 {chrome}
6 {office}
7 {reader}
8 {updates}
9 {exit}
default {
write-host -ForegroundColor red "Invalid Selection"
sleep 2
mainmenu
}
}
}
echo ""