安装@vuecli "失败"

在新电脑上试图创建vue3.0项目时，

安装@vue-cli “失败”

这是因为，

此系统禁止运行脚本

这是你笔记本禁止运行脚本，解决办法

一、管理员身份运行终端

二、更改执行策略

PS D:\vue-test> vue -V
vue : File C:\Users\admin\AppData\Roaming\npm\vue.ps1 cannot be loaded. The file C:\Users\admin\AppData\Roaming\npm\vue
.ps1 is not digitally signed. You cannot run this script on the current system. For more information about running scri
pts and setting execution policy, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.
At line:1 char:1
+ vue -V
+ ~~~
    + CategoryInfo          : SecurityError: (:) [], PSSecurityException
    + FullyQualifiedErrorId : UnauthorizedAccess
PS D:\vue-test> vue --version
vue : File C:\Users\admin\AppData\Roaming\npm\vue.ps1 cannot be loaded. The file C:\Users\admin\AppData\Roaming\npm\vue
.ps1 is not digitally signed. You cannot run this script on the current system. For more information about running scri
pts and setting execution policy, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.
At line:1 char:1
+ vue --version
+ ~~~
    + CategoryInfo          : SecurityError: (:) [], PSSecurityException
    + FullyQualifiedErrorId : UnauthorizedAccess
PS D:\vue-test> vue
vue : File C:\Users\admin\AppData\Roaming\npm\vue.ps1 cannot be loaded. The file C:\Users\admin\AppData\Roaming\npm\vue
.ps1 is not digitally signed. You cannot run this script on the current system. For more information about running scri
pts and setting execution policy, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.
At line:1 char:1
+ vue
+ ~~~
    + CategoryInfo          : SecurityError: (:) [], PSSecurityException
    + FullyQualifiedErrorId : UnauthorizedAccess
PS D:\vue-test> vue -create
vue : File C:\Users\admin\AppData\Roaming\npm\vue.ps1 cannot be loaded. The file C:\Users\admin\AppData\Roaming\npm\vue
.ps1 is not digitally signed. You cannot run this script on the current system. For more information about running scri
pts and setting execution policy, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.
At line:1 char:1
+ vue -create
+ ~~~
    + CategoryInfo          : SecurityError: (:) [], PSSecurityException
    + FullyQualifiedErrorId : UnauthorizedAccess
PS D:\vue-test> set-ExecutionPolicy RemoteSigned

Execution Policy Change
The execution policy helps protect you from scripts that you do not trust. Changing the execution policy might expose
you to the security risks described in the about_Execution_Policies help topic at
https:/go.microsoft.com/fwlink/?LinkID=135170. Do you want to change the execution policy?
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "N"): A
PS D:\vue-test> vue --version
@vue/cli 4.5.15