FOR /F %%i IN (‘echo %assigned_user:~0,2%’) DO @set lastname=%%i
命令:echo %assigned_user:~0,2%
赋值给变量lastname
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FOR /F %%i IN (‘echo %assigned_user:~0,2%’) DO @set lastname=%%i
命令:echo %assigned_user:~0,2%
赋值给变量lastname