[文本处理] [已解决] 批处理如何提取txt文本每一行中含指定字符串的字段里数字最小的

@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%a in (a.txt) do (
     set "str=%%a"&set "str=!str:-= !"
     for %%b in (!str!) do (
           set "var=%%b"
           if  "!var:~,2!" equ "US" (
               if not defined min  set "min=!var:~2!"
               if !min! gtr !var:~2! set "min=!var:~2!"
          )
     )
     echo US!min!&set "min="
)
pause>nul               
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@echo off&setlocal enabledelayedexpansion
(for /f "delims=" %%a in (a.txt) do (
  set "var=%%a" & set "var=!var:us=盘:\!" & set min=2147483647
  for %%a in (!var:-^=.!) do (
    if %%~da==盘: if %%~na lss !min! set min=%%~na
  )
  echo US!min!
))>b.txt
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