NSIS配置windows环境变量

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;设置oracle的环境变量到PATH路径
ReadRegStr $0 HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment" "Path"
WriteRegExpandStr HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment" "Path" "$0;$INSTDIR\Oracle\bin\"
;刷新环境变量
SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment"


;利用WordReplace函数从PATH中删除设置oracle的环境变量
;需要在文件头引入相应的头文件:!include "WordFunc.nsh"
ReadRegStr $R0 HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment" "Path"
${WordReplace} $R0 ";$INSTDIR\Oracle\bin\" "" "+" $R1
;MessageBox MB_OK|MB_USERICON '$R0 - $INSTDIR - $R1 '
WriteRegExpandStr HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment" "Path" "$R1"
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