显示、设置或删除 cmd.exe 环境变量。 1. SET [variable=[string]] variable 指定环境变量名。 string 指定要指派给变量的一系列字符串。 SET 命令不允许变量名含有等号。 eg: set JAVA_HOME="D:\ENV\javaSE8" 2. SET 要显示当前环境变量,键入不带参数的 SET。 3. SET [前缀匹配] 如果命令扩展被启用,S...
set是cmd最基础的命令,每个人都会用,但其实它还是有些知识的。 set 用来接收入参 set /p var=请选择(1或2或3): echo %var% 1. 2. 可以接收输入的参数。 set /p var=请选择(1或2或3): echo %var% 语法 help set,输出如下: 显示、设置或删除 cmd.exe 环境变量。 SET [variable=[string]] varia...
CMD语法-SET命令SET命令 显⽰、设置或删除 cmd.exe 环境变量。 1. SET [variable=[string]] variable 指定环境变量名。 string 指定要指派给变量的⼀系列字符串。 SET 命令不允许变量名含有等号。 eg: set JAVA_HOME="D:\ENV\javaSE8" 2. SET 要显⽰当前环境...
Changing a variable permanently with SetX will not affect any CMD prompt that is already open. Only new CMD prompts will get the new setting. You can of course use SetX in conjunction with SET to change both at the same time: Set _Library=T:\Library\ SetX _Library T:\Library\ /mChang...
# Windows CMD C:\> set VAR_NAME="VALUE" # Windows PowerShell PS C:\> $env:VAR_NAME="VALUE" Print an environment variable to the console: # Windows CMD C:\> echo %VAR_NAME% # Windows PowerShell PS C:\> $env:VAR_NAME
Two other environment variables used by Windows are PROMPT and DIRCMD. Using parameters When you specify values for Variable and String, the specified variable value is added to the environment and String is associated with that variable. If the variable already exists in the environment, the new...
Set-CMDeviceCollectionVariable Set-CMDeviceOwnership Set-CMDeviceVariable Set-CMDiscoveryMethod Set-CMDistributionPoint Set-CMDistributionPointGroup Set-CMDriver Set-CMDriverBootImage Set-CMDriverPackage Set-CMEmailNotificationComponent Set-CMEmailProfile Set-CMEndpointProtectionPoint Set-CMEndpointProtectionSumm...
You can access the environment variable you have created from different locations. Let’s look at how you can use your variable. Command Prompt Method Open the Start menu and enter CMD in the search box. In Command Prompt, type in the following command, filling in your variable name where ...
VARIABLE ACT VARCHAR2(40) 1. EXECUTE DBMS_APPLICATION_INFO.READ_MODULE(:MOD, :ACT); 1. PL/SQL procedure successfully completed. 1. PRINT MOD 1. MOD 1. --- 1. This is SQL*Plus 1. To change APPINFO back to its default setting...
1、第一步：当翻开利用法式犯错：Run-tim error '91' 提醒： object variable or with block variable not set 报错，如图一。2、第二步：起头下号令设置方式，单击起头菜单-->运转-->操纵如图二。3、第三步：在弹出运转对话框后，输入CMD字符，敲回车键，弹出运转对话框如图三。4、第四步：在...