Question

鉴于此脚本：

var fun = map["Dog"];

运行& non_existent_cmd echo "I don't want this to run"时引发非终止错误的最简单方法是什么，以便以下& non_existent_cmd命令永远不会运行。

作为参考，脚本（如上所述）当前输出：

& : The term 'non_existent_cmd' is not recognized as the name of a cmdlet,
function, script file, or operable program. Check the spelling of the name,
or if a path was included, verify that the path is correct and try again.
At line:1 char:3
+ & non_existent_cmd
+   ~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (non_existent_cmd:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

I don't want this to run

Answer 1

您可以将会话的$ErrorActionPreference设置为Stop。这将使任何错误成为终止错误。

如果您只希望该呼叫在出错时终止，您可以执行以下操作：

$eap = $ErrorActionPreference
$ErrorActionPreference = 'Stop'
& non_existent_cmd
echo "I don't want this to run"
$ErrorActionPreference = $eap

Answer 2

也许试试这个？

try { & non_existent_cmd }
catch { Break }
"I don't want this to run"

我如何制作`＆amp; non_existent_cmd`（调用运算符）终止错误？

2 个答案: