[系统相关] 求批处理path 写入问题

@set Path_=c:\PBENVDLL1252
echo %Path%|find /i "%Path_%" && set IsNull=true|| set IsNull=false  
if not %IsNull%==true (
   wmic ENVIRONMENT where "name='path' and username='<system>'" set VariableValue="%path_%;%path%" 
)
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