拖拉文件到bat腳本執行復制到指定目錄代碼修改

[已解決]拖拉文件到bat腳本執行復制到指定目錄代碼修改求助用ChatGPT生成了拖拉文件到bat執行復制到指定目錄的代碼。生成了2個不同的代碼：代碼1 只可以復制單個文件、目錄可以保持原目錄結構復制到指定目錄；代碼2 可以復制多個文件、目錄只把下一層的內容復制到指定目錄。請教一下大佬們要怎么修改代碼2能解決目錄不改變結構復制到指定目錄？謝謝代碼1,文件只能單個復制，目錄能保持原結構復制。

@echo off
setlocal
rem check if the script received a valid file or directory path
if not %~1== (
set source=%~1
) else (
echo No file or directory path specified.
pause
exit /b 1
)
rem check if the source path exists
if not exist %source% (
echo The source path does not exist: %source%
pause
exit /b 1
)
rem create or validate the test directory
set testdir=E:test
if not exist %testdir% (
md %testdir%
)
rem copy the file or directory to the test directory
if exist %source%*.* (
xcopy /E /Y %source% %testdir%%~nx1
) else (
copy /Y %source% %testdir%
)
echo Successfully copied %source% to %testdir%
pause
exit /b
nclick="copycode($('code0'));">復制代碼

代碼2，可以復制多個文件，目錄只復制下一層內容到目標目錄。

@echo off
set dest=E:test
:loop
IF %~1== GOTO done
IF EXIST %dest%%~nx1 (
set /p overwrite=File %~nx1 already exists in destination folder. Overwrite? (y/n): 
IF /i %overwrite%==y (
copy /y %~1 %dest%
shift
Goto loop
) ELSE (
shift
Goto loop
)
) ELSE (
copy /y %~1 %dest%
shift
Goto loop
)
:done
echo File(s) copied to %dest%
exit
nclick="copycode($('code1'));">復制代碼