在 Windows PowerShell 中执行 yarn 相关命令时报错：不允许使用与号(&)

1、在 Windows PowerShell 中执行 yarn 相关命令时报错：不允许使用与号(&)。如图1

PS E:\wwwroot\with-blade> yarn hotishop theme build & hotishop app build --all
所在位置 行:1 字符: 27
+ yarn hotishop theme build & hotishop app build --all
+                           ~
不允许使用与号(&)。& 运算符是为将来使用而保留的；请用双引号将与号引起来("&")，以将其作为字符串的一部分传递。
    + CategoryInfo          : ParserError: (:) [], ParentContainsErrorRecordException
    + FullyQualifiedErrorId : AmpersandNotAllowed

2、决定将 & 替换为 “&”，然后执行：yarn hotishop theme build 成功后，报错：’hotishop’ 不是内部或外部命令，也不是可运行的程序或批处理文件。

PS E:\wwwroot\with-blade> yarn hotishop theme build "&" hotishop app build --all
...
@theme/brooklyn: √ Mix: Compiled successfully in 2.73m
@theme/brooklyn: webpack compiled successfully
lerna success run Ran npm script 'prod' in 1 package in 180.7s:
lerna success - @theme/brooklyn
Done in 288.18s.
'hotishop' 不是内部或外部命令，也不是可运行的程序
或批处理文件。

3、在第 2 个 hotishop 之前添加 yarn ，最后两个 build 皆成功运行。如图2

PS E:\wwwroot\with-blade> yarn hotishop theme build "&" yarn hotishop app build --all
yarn run v1.22.15
$ E:\wwwroot\with-blade\node_modules\.bin\hotishop theme build
~ Removing apps from "./themes/brooklyn/apps/internal" ...
$ E:\wwwroot\with-blade\node_modules\.bin\lerna run --scope @theme/brooklyn prod
lerna notice cli v6.6.2
...
@theme/brooklyn: √ Mix: Compiled successfully in 2.80m
@theme/brooklyn: webpack compiled successfully
lerna success run Ran npm script 'prod' in 1 package in 216.7s:
lerna success - @theme/brooklyn
Done in 253.16s.
yarn run v1.22.15
$ E:\wwwroot\with-blade\node_modules\.bin\hotishop app build --all
$ E:\wwwroot\with-blade\node_modules\.bin\lerna run --scope @extension/* prod
lerna notice cli v6.6.2
lerna info versioning independent
lerna notice filter including "@extension/*"
lerna info filter [ '@extension/*' ]
lerna info Executing command in 28 packages: "yarn run prod"
@extension/back-top: $ mix --production
...
lerna success - @extension/visitors-counter
√ Done!
Done in 770.26s.