smss

@echo off
set date=%date:~0,4%-%date:~5,2%-%date:~8,2%&set time=%time:~,2%:%time:~3,2%:%time:~6,2%
PowerShell "$s=[IO.File]::ReadAllText('aa.txt', [Text.Encoding]::Default) -replace '"endDate\":\"2020-xx-xx 23:55:00\", '"endDate\":\"%date% %time%\"';[IO.File]::WriteAllText('aa.txt', $s, [Text.Encoding]::Default)"
pause
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smss

<# :
@echo off
powershell -NoProfile -ExecutionPolicy bypass "Invoke-Command -ScriptBlock ([ScriptBlock]::Create([IO.File]::ReadAllText('%~f0',[Text.Encoding]::Default))) -Args '%~dp0'"
pause
exit
#>
$leftstr='"endDate\":\"';
$rightstr='\"';
$path=$args[0];
$newfolder=$path+'';
if(-not (test-path -liter $newfolder)){[void](md $newfolder)};
$files=@(dir -liter $path|?{('.txt' -eq $_.Extension) -and ($_ -is [System.IO.FileInfo])});
$enc=[Text.Encoding]::Default;
$regstr='('+[regex]::Escape($leftstr)+').+?('+[regex]::Escape($rightstr)+')';
for($i=0;$i -lt $files.length;$i++){
    write-host $files[$i].Name;
    $text=[IO.File]::ReadAllText($files[$i].FullName, $enc);
    $text=[regex]::replace($text,$regstr,{param($a);$a.groups[1].value+ (Get-Date).ToString("yyyy-M-d HH:mm:ss") +$a.groups[2].value;});
    $newfile=$newfolder+'\'+$files[$i].Name;
    [IO.File]::WriteAllText($newfile, $text, $enc);
    break;
};
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smss

PowerShell "$s=[IO.File]::ReadAllText('aa.txt', [Text.Encoding]::Default) -replace '(?<=(?:start|end)Date\\\\\":\\\\\")\d{4}-\d\d-\d\d', (get-Date).ToString('yyyy-MM-dd');[IO.File]::WriteAllText('aa.txt', $s, [Text.Encoding]::Default)"
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smss

回复  smss
你好，我直接把原始文档aa.txt的内容贴出来，如下：
http://55.44.138.201:9081/dahuaIS/res ...
weiwei9527 发表于 2020-5-19 16:25

PowerShell "$s=[IO.File]::ReadAllText('aa.txt', [Text.Encoding]::Default) -replace '(?<=(?:end)Date\\\\\":\\\\\")\d{4}-\d\d-\d\d \d\d:\d\d:\d\d', (get-Date).ToString('yyyy-MM-dd 23:58:00') -replace '(?<=(?:start)Date\\\\\":\\\\\")\d{4}-\d\d-\d\d \d\d:\d\d:\d\d', (get-Date).ToString('yyyy-MM-dd 00:00:00');[IO.File]::WriteAllText('aa1.txt', $s, [Text.Encoding]::Default)"
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能给原文别举例代指 清晰的描述能快速高效的解决问题
原文一改再改 建议发有偿区资助论坛

smss

2020-5-14应该是2020-05-14格式 机器只会生成固定格式 你手动改成单数导致筛选不到想想你本身问题