這幾天外網特別不穩定，感覺都快沒法編程了。正好昨天又新裝了一個操作系統，一大堆軟件等著要裝。所以本來是個挺順利的事，非得折騰一圈才能成功。

首先是，官方已經說明了如何安裝choco，

https://chocolatey.org/install

根據官方的說法，先要執行
Set-ExecutionPolicy AllSigned

或者
Set-ExecutionPolicy Bypass -Scope Process?

然后再執行下面這個指令就可以了，

Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))

?但由于網絡不行，試了幾次不能成功，在powershell中的輸出如下圖所示，

> Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))
Forcing web requests to allow TLS v1.2 (Required for requests to Chocolatey.org)
Getting latest version of the Chocolatey package for download.
Not using proxy.
Getting Chocolatey from https://community.chocolatey.org/api/v2/package/chocolatey/1.1.0.
Downloading https://community.chocolatey.org/api/v2/package/chocolatey/1.1.0 to C:\Users\user\AppData\Local\Temp\chocolatey\chocoInstall\chocolatey.zip
Not using proxy.

?于是到官網下載，

https://community.chocolatey.org/api/v2/package/chocolatey/1.1.0.

下載完后根據上面的信息把這個文件放在這里，

?C:\Users\user\AppData\Local\Temp\chocolatey\chocoInstall\chocolatey.1.1.0.nupkg

注意這里我把文件要更改成chocolatey.zip（如果不修改的話好像也是沒有問題），?然后在Powershell中把前面那條長長的指令重新跑了次，就成功安裝了chocolatey。

安裝 過程中給出了一長串的信息，留在下面作個備注吧，

Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))
Forcing web requests to allow TLS v1.2 (Required for requests to Chocolatey.org)
Getting latest version of the Chocolatey package for download.
Not using proxy.
Getting Chocolatey from https://community.chocolatey.org/api/v2/package/chocolatey/1.1.0.
Downloading https://community.chocolatey.org/api/v2/package/chocolatey/1.1.0 to C:\Users\User\AppData\Local\Temp\chocolatey\chocoInstall\chocolatey.zip
Not using proxy.
Extracting C:\Users\USer\AppData\Local\Temp\chocolatey\chocoInstall\chocolatey.zip to C:\Users\User\AppData\Local\Temp\chocolatey\chocoInstall
Installing Chocolatey on the local machine
Creating ChocolateyInstall as an environment variable (targeting 'Machine')
? Setting ChocolateyInstall to 'C:\ProgramData\chocolatey'
WARNING: It's very likely you will need to close and reopen your shell
? before you can use choco.
Restricting write permissions to Administrators
We are setting up the Chocolatey package repository.
The packages themselves go to 'C:\ProgramData\chocolatey\lib'
? (i.e. C:\ProgramData\chocolatey\lib\yourPackageName).
A shim file for the command line goes to 'C:\ProgramData\chocolatey\bin'
? and points to an executable in 'C:\ProgramData\chocolatey\lib\yourPackageName'.

Creating Chocolatey folders if they do not already exist.

WARNING: You can safely ignore errors related to missing log files when
? upgrading from a version of Chocolatey less than 0.9.9.
? 'Batch file could not be found' is also safe to ignore.
? 'The system cannot find the file specified' - also safe.
chocolatey.nupkg file not installed in lib.
?Attempting to locate it from bootstrapper.
PATH environment variable does not have C:\ProgramData\chocolatey\bin in it. Adding...
警告: Not setting tab completion: Profile file does not exist at 'C:\Users\User\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1'.
Chocolatey (choco.exe) is now ready.
You can call choco from anywhere, command line or powershell by typing choco.
Run choco /? for a list of functions.
You may need to shut down and restart powershell and/or consoles
?first prior to using choco.
Ensuring Chocolatey commands are on the path
Ensuring chocolatey.nupkg is in the lib folder

安裝完成后，可執行文件的路徑在這里，

C:\ProgramData\chocolatey\bin?

可以檢查一下是否已經添加到系統 環境變量中了?，如果沒有的話，可能安裝過程中出了問題，需要手動設置一下即可。

本文結束。

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