batman

楼主首先可以讲一下你这下做的意图何在吗？

batman

@echo off&setlocal enabledelayedexpansion
for /f %%a in (a.txt) do (
  for /f "tokens=5 delims==m" %%b in ('ping /n 1 %%a^|findstr "from"') do (
    if not defined min (
      set /a min=%%b
      ) else (
      if !min! gtr %%b set /a min=%%b&set "_!min!=%%a"
    )
  )
)
echo 经检测最适宜的dns为:!_%min%!
pause>nul
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