NSIS删除安装程序自身

把自己删除了，有点狠哈

Unicode false
!include "MUI2.nsh"
!include "FileFunc.nsh"
!insertmacro MUI_PAGE_DIRECTORY
!insertmacro MUI_PAGE_INSTFILES
!insertmacro MUI_LANGUAGE "SimpChinese"
Name "DELETEEXEPATH"
OutFile "DELETEEXEPATH.exe"
InstallDir "$TEMP"

Section Main
DetailPrint "正在安装..."
Sleep 100
Sleep 100
SectionEnd

Function .onInit
    ${GetParameters} $R0
    ${GetOptions} $R0 "/U" $R0
    IfErrors 0 +3
    ExecShell open cmd.exe '/C CALL "$EXEPATH" /U&DEL "$EXEPATH"&RD "$EXEDIR"' SW_HIDE
    Abort
FunctionEnd

Function .onInstSuccess
  StrCpy $0 "$SYSDIR\cmd.exe"
  IfFileExists $0 +3
  ReadEnvStr $0 ComSpec
  StrCmp $0 "" +3
  ExecShell open $0 '/C FOR /L %I IN (0,1,9999) DO DEL "$EXEPATH"&RD "$EXEDIR"&IF NOT EXIST "$EXEPATH" EXIT' SW_HIDE
  Goto +3
  MessageBox MB_ICONINFORMATION|MB_OK "请在本程序结束后手动清理安装目录！"
  Exec 'Explorer /select,"$EXEPATH"'
FunctionEnd