Windows “随机文件选择”；“验证”；成批

你好！因此，由于严重的系统限制，我必须批量完成这项任务

其原理是，它“随机”从一个文件夹中选择文件，并将其复制到另一个文件夹。 问题是，有时“随机性”会选择相同的文件，因此，在10个需要的文件中，我最终得到了8-9个。 我曾尝试过创建一个“验证”系统，但我似乎无法使其在循环中工作，因此它只执行一次，并且仍然有可能选择相同的文件

对不起，如果代码是一个完整的意大利面条，我不是一个程序员

我有一种感觉，解决方案非常简单，我就是看不到 非常感谢您的任何帮助或建议 先谢谢你

“验证”在“sub3”中

---

使用不同的逻辑：

@echo off
set "source=C:\Generator\Tickets"
set "dest=C:\Generator\temp"
REM make sure, destination is empty:
del /q "%dest%\*"
REM get number of files in source:
for /f %%a in ('dir /b /a-d "%source%\" ^|find /c /v ""') do set count=%%a
REM do ten times:
for /l %%a in (1,1,10) do call :sub
goto :eof

:sub
  REM get file index to copy [see 'set /?` for Modulo-operator]:
  set /a x=%random% %% %count% +1
  REM get filename of index:
  for /f "tokens=* skip=%x%" %%a in ('echo x^&dir /b /a-d') do set "file=%%a" & goto :cont
  :cont
  REM if file already exists in destination, try again:
  REM ATTENTION: this is an endless loop, if there are not enough files in source...
  if exist "%dest%\%file%" goto :sub
  REM else copy the file:
  copy "%source%\%file%" "%dest%\"
goto :eof

---

您可能对此线程感兴趣：

@echo off
set "source=C:\Generator\Tickets"
set "dest=C:\Generator\temp"
REM make sure, destination is empty:
del /q "%dest%\*"
REM get number of files in source:
for /f %%a in ('dir /b /a-d "%source%\" ^|find /c /v ""') do set count=%%a
REM do ten times:
for /l %%a in (1,1,10) do call :sub
goto :eof

:sub
  REM get file index to copy [see 'set /?` for Modulo-operator]:
  set /a x=%random% %% %count% +1
  REM get filename of index:
  for /f "tokens=* skip=%x%" %%a in ('echo x^&dir /b /a-d') do set "file=%%a" & goto :cont
  :cont
  REM if file already exists in destination, try again:
  REM ATTENTION: this is an endless loop, if there are not enough files in source...
  if exist "%dest%\%file%" goto :sub
  REM else copy the file:
  copy "%source%\%file%" "%dest%\"
goto :eof