xiaobat

@echo off
set yyy=bbs bathome.net
echo %yyy%
for /f "tokens=1" %%i in ("%yyy%") do echo %%i
(for /f "tokens=1 delims=." %%i in ("%yyy%") do echo %%i) >1.txt
for /f "tokens=2" %%i in (1.txt) do echo %%i
for /f "delims=. tokens=2" %%i in ("%yyy%") do echo %%i
pause
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xiaobat

@echo off
cls
for /f "tokens=1-3" %%i in (test.txt) do echo %%i %%j  %%k
for /f "tokens=2"  %%i in (test.txt) do echo %%i
pause
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xiaobat

@echo off
cls
for /f "tokens=1-3" %%i in (f:\test.txt) do echo %%i %%j  %%k
for /f "tokens=2"  %%i in (f:\test.txt) do echo %%i
pause
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xiaobat

@echo off
set xxx=bbs buthome.net
for /f "tokens=1-3 delims=. " %%i in ("%xxx%") do set s1=%%i && set s2=%%j && set s3=%%k
echo %s1%
echo %s2%
echo %s3%
pause>nul
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mangci

                for  /l %i% in (1.1.100) do echo %i%
                          for  /l %i% in (1.2.99) do echo %i%
                
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mangci

1.

  for /l %%i in (1.1.100) echo %%i
  
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2.

  for /l %%i in (1.2.99) echo %%i
  
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3.

 
  @ echo off
  set "str=bbs bathome.net"
  echo %str%
  for %%i in (%str%) do echo %%i
  
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mangci

第四题

@ echo off
for /f "tokens=*" %%i in (f:\test.txt) do echo %%i
for /f "tokens=2" %%i in (f:\test.txt) do echo %%i
pause
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sotary

五個題目按順序依次執行

@echo off
for /l %%a in (1,1,100) do echo %%a
pause>nul
for /l %%a in (1,2,99) do echo %%a
pause>nul
set str="bbs bathome.net"
for /f "tokens=1 delims==. " %%a in (%str%) do echo %%a
for /f "tokens=2 delims==. " %%a in (%str%) do echo %%a
for /f "tokens=3 delims==. " %%a in (%str%) do echo %%a
pause>nul
for /f "tokens=1-3 delims==" %%a in (test.txt) do echo %%a
pause>nul
for /f "tokens=2 delims== " %%a in (test.txt) do echo %%a
>nul
@echo on
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wangqi0077

@echo off
color a
for /f "delims=." %%i in (1.txt) do echo %%i
echo _______________________________________
for /f "tokens=2" %%i in (1.txt) do echo %%i
pause
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zhenglj

@echo off
for /f "tokens=1 delims=. " %%a in ("bbs bathome.net") do echo %%a
for /f "tokens=2 delims=. " %%b in ("bbs bathome.net") do echo %%b
for /f "tokens=3 delims=. " %%c in ("bbs bathome.net") do echo %%c
pause>nul
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zhiyanzhai33

有疑问的是第三题，只看了第一页的帖子，为什么大家都不设置delims，难道逗号也是默认分列符？反正在我的机器上不设置是不行的

 
@echo off
echo 第一题
for /l %%i in (1,1,100) do echo %%i
pause & cls
echo 第二题
for /l %%i in (1,2,99) do echo %%i
pause & cls
echo 第三题
for /f "tokens=1-3 delims=. " %%i in ("bbs bathome.net") do (
 echo %%i
 echo %%j
 echo %%k
)
pause & cls
echo 第四题①，这个可以不用for：
type test.txt
echo. & pause & cls
echo 第四题②
for /f "tokens=2" %%i in (test.txt) do echo %%i
pause & cls
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rivch

@echo off
for /f "delims=" %%i in (1.txt) do echo %%i
pause>nul
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@echo off
for /f "tokens=2,5,8" %%i in (1.txt) do echo %%i
pause>nul
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rivch

第3题

@echo off
set txt=bbs bathome.net
for /f "tokens=1-3 delims=. " %%i in ("%txt%") do (
echo %%i
echo %%j 
echo %%k
)
pause>nul
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vfcai

@echo off
for /l %%i in (1,1,100) echo %%i
pause
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@echo off
for /l %%i in (1,2,99) echo %%i
pause
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@echo off
for /f "delims=, "
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awp628

@echo off
for /l %%i in (1,1,100) do echo.%%i
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第一题我也会做 哈哈