@echo off
setlocal EnableDelayedExpansion
cd /d "%~dp0"
set examfile="考试得分.txt"
set trainfile="训练模拟得分.txt"
set recordfile="成绩趋势报告.txt"
set n=0
for /f "usebackq delims=" %%A in (%examfile%) do (
  for %%B in (%%A) do (
    set /a n+=1
    set examscore_!n!=%%B
  )
)
set /a examscoreubound=n
set n=0
for /f "usebackq delims=" %%A in (%trainfile%) do (
  for %%B in (%%A) do (
    set /a n+=1
    set trainscore_!n!=%%B
  )
)
set /a trainscoreubound=n
set prev=0
for /l %%A in (1,1,%examscoreubound%) do (
  @REM echo examscore_%%A=!examscore_%%A!
  set /a subtract=examscore_%%A-prev
  if !subtract! geq 0 (
    set examtrend_%%A=1
  ) else (
    set examtrend_%%A=-1
  )
  set prev=!examscore_%%A!
)
set traintrend_1=1
for /l %%A in (2,1,%trainscoreubound%) do (
  set /a n=%%A-1
  set /a subtract=trainscore_%%A-examscore_!n!
  if !subtract! geq 0 (
    set traintrend_%%A=1
  ) else (
    set traintrend_%%A=-1
  )
)
(
for /l %%A in (1,1,%trainscoreubound%) do (
  if %%A neq %trainscoreubound% (
    <nul set /p "s=!examtrend_%%A!/!traintrend_%%A!,"
  ) else (
    <nul set /p "s=!examtrend_%%A!/!traintrend_%%A!="
  )
  >nul set /a relationresult_%%A=examtrend_%%A/traintrend_%%A
)
set ctr=0
for /l %%A in (1,1,%trainscoreubound%) do (
  <nul set /p "s=!relationresult_%%A!"
  if %%A neq %trainscoreubound% <nul set /p "s=,"
  if !relationresult_%%A! geq 0 set /a ctr+=1
)
set /a ratio=ctr*100/trainscoreubound
echo.
echo 训练提高成绩概率:!ctr!/%trainscoreubound%=!ratio!%%
)>%recordfile%

endlocal
pause
exit /b
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#@&cls&powershell -c "iex(gc '%~0'|out-string)"&pause&exit/b
$examfile='C:\Users\lenovo\Desktop\test\考试得分.txt'
$trainfile='C:\Users\lenovo\Desktop\test\训练模拟得分.txt'
$reportfile='C:\Users\lenovo\Desktop\test\报告.txt'
$exam=(gc $examfile) -split ","
$train=(gc $trainfile) -split ","
$examincrease=$trainincrease=$report=@()

for($i=0;$i -lt $exam.count;$i++){
    if($i -eq 0){$examincrease+="1"}else{
#依次对比上一次考试分数，大于等于上次则“+1”，（首次直接“+1”）
        if($exam[$i] -ge $exam[$i-1]){$examincrease+="1"}else{$examincrease+="-1"}
    }
    if($train[$i] -ge $exam[$i]){$trainincrease+="1"}else{$trainincrease+="-1"}
#训练分数依次对比考试分数，大于等于考试分数则“+1”
    $report+=$examincrease[$i]+"/"+$trainincrease[$i]
#考试对比结果依次与训练对比结果组对
#没看懂题目“1/1,1/1,1/-1,-1/1,1/1,-1/-1=1,1,-1，-1,1,1”这里面等号后的数字咋来的，暂时忽略...
}
"考试提高："
$examincrease -join ","
"训练提高："
$trainincrease -join ","
"相关报告："
$report -join ", "

#这里统计训练提高中的“+1”数量，算概率，不知道有没有理解错。
$increase=($trainincrease -notmatch "-1").count
$successrate=$increase/$trainincrease.count
"{0}","{1}","{2:f3}" -f "训练提高成绩概率:","$increase/$($trainincrease.count)=",$successrate
cmd /c pause
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