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| function Invoke-FullSystemDiagnostic {
[CmdletBinding()]
param(
[string]$OutputPath = "$env:TEMP\SystemDiagnosticReport.html",
[double]$CpuThreshold = 80,
[double]$MemoryThreshold = 85,
[double]$DiskThreshold = 90
)
Write-Host "开始全量系统诊断..." -ForegroundColor Cyan
$diagStart = Get-Date
Write-Host " [1/4] 采集硬件指标..." -ForegroundColor Gray
$os = Get-CimInstance -ClassName Win32_OperatingSystem
$cpuSample = (Get-Counter -Counter '\Processor(_Total)\% Processor Time' -SampleInterval 1 -MaxSamples 3).CounterSamples
$cpuAvg = [math]::Round(($cpuSample | Measure-Object -Property CookedValue -Average).Average, 2)
$memUsedPercent = [math]::Round(($os.TotalVisibleMemorySize - $os.FreePhysicalMemory) / $os.TotalVisibleMemorySize * 100, 2)
$disks = Get-CimInstance -ClassName Win32_LogicalDisk -Filter 'DriveType=3'
Write-Host " [2/4] 检查服务状态..." -ForegroundColor Gray
$criticalSvcs = @('WinRM', 'EventLog', 'LanmanServer', 'LanmanWorkstation', 'Schedule')
$svcResults = foreach ($name in $criticalSvcs) {
$s = Get-Service -Name $name -ErrorAction SilentlyContinue
@{ Name = $name; Status = if ($s) { $s.Status.ToString() } else { 'NotFound' } }
}
Write-Host " [3/4] 扫描事件日志..." -ForegroundColor Gray
$startTime = (Get-Date).AddHours(-24)
$errors = @(Get-WinEvent -FilterHashtable @{ LogName = 'System'; Level = 2; StartTime = $startTime } -MaxEvents 100 -ErrorAction SilentlyContinue)
$warnings = @(Get-WinEvent -FilterHashtable @{ LogName = 'System'; Level = 3; StartTime = $startTime } -MaxEvents 100 -ErrorAction SilentlyContinue)
Write-Host " [4/4] 计算健康评分..." -ForegroundColor Gray
$score = 100
$cpuDeduction = [math]::Min(20, [math]::Max(0, ($cpuAvg - $CpuThreshold) * 0.5))
$score -= $cpuDeduction
$memDeduction = [math]::Min(20, [math]::Max(0, ($memUsedPercent - $MemoryThreshold) * 0.5))
$score -= $memDeduction
foreach ($disk in $disks) {
$diskUsedPercent = [math]::Round(($disk.Size - $disk.FreeSpace) / $disk.Size * 100, 2)
if ($diskUsedPercent -gt $DiskThreshold) {
$score -= [math]::Min(10, [math]::Max(0, ($diskUsedPercent - $DiskThreshold) * 0.3))
}
}
$stoppedSvcs = @($svcResults | Where-Object { $_.Status -ne 'Running' })
$svcDeduction = [math]::Min(25, $stoppedSvcs.Count * 5)
$score -= $svcDeduction
$logDeduction = [math]::Min(15, [math]::Round($errors.Count / 5, 0))
$score -= $logDeduction
$score = [math]::Max(0, [math]::Round($score, 0))
$overallStatus = if ($score -ge 80) { 'Healthy' } elseif ($score -ge 50) { 'Warning' } else { 'Critical' }
$diagDuration = [math]::Round(((Get-Date) - $diagStart).TotalSeconds, 1)
$html = @"
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>系统诊断报告 - $($env:COMPUTERNAME) - $(Get-Date -Format 'yyyy-MM-dd')</title>
<style>
body { font-family: 'Segoe UI', sans-serif; margin: 20px; background: #f5f5f5; }
.container { max-width: 960px; margin: auto; background: white; padding: 30px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
h1 { color: #0078d4; border-bottom: 2px solid #0078d4; padding-bottom: 10px; }
.score { font-size: 48px; font-weight: bold; text-align: center; padding: 20px; }
.score.healthy { color: #107c10; }
.score.warning { color: #ff8c00; }
.score.critical { color: #d13438; }
table { width: 100%; border-collapse: collapse; margin: 10px 0; }
th, td { border: 1px solid #ddd; padding: 8px 12px; text-align: left; }
th { background: #0078d4; color: white; }
tr:nth-child(even) { background: #f9f9f9; }
.badge { padding: 3px 8px; border-radius: 4px; font-size: 12px; font-weight: bold; }
.badge-ok { background: #dff6dd; color: #107c10; }
.badge-warn { background: #fff4ce; color: #ff8c00; }
.badge-error { background: #fde7e9; color: #d13438; }
</style>
</head>
<body>
<div class="container">
<h1>系统诊断报告</h1>
<p>计算机: <strong>$($env:COMPUTERNAME)</strong> | 生成时间: <strong>$(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')</strong> | 耗时: ${diagDuration}s</p>
<div class="score $overallStatus.ToLowerInvariant()">$score / 100</div>
<p style="text-align:center; font-size:18px;">总体状态: <strong>$overallStatus</strong></p>
<h2>CPU 使用率</h2>
<p>平均使用率: <strong>${cpuAvg}%</strong> (阈值: ${CpuThreshold}%)</p>
<h2>内存使用率</h2>
<p>已用: <strong>${memUsedPercent}%</strong> (阈值: ${MemoryThreshold}%)</p>
<h2>磁盘空间</h2>
<table>
<tr><th>驱动器</th><th>总容量</th><th>可用空间</th><th>可用百分比</th></tr>
$(foreach ($d in $disks) {
$freePct = [math]::Round($d.FreeSpace / $d.Size * 100, 2)
$badge = if ($freePct -gt 20) { 'badge-ok' } elseif ($freePct -gt 10) { 'badge-warn' } else { 'badge-error' }
"<tr><td>$($d.DeviceID)</td><td>$([math]::Round($d.Size/1GB,2)) GB</td><td>$([math]::Round($d.FreeSpace/1GB,2)) GB</td><td><span class=`"badge $badge`">${freePct}%</span></td></tr>"
})
<h2>关键服务状态</h2>
<table>
<tr><th>服务名</th><th>状态</th></tr>
$(foreach ($s in $svcResults) {
$badge = if ($s.Status -eq 'Running') { 'badge-ok' } else { 'badge-error' }
"<tr><td>$($s.Name)</td><td><span class=`"badge $badge`">$($s.Status)</span></td></tr>"
})
<h2>事件日志摘要（最近 24 小时）</h2>
<p>错误: <strong>$($errors.Count)</strong> 条 | 警告: <strong>$($warnings.Count)</strong> 条</p>
</div>
</body>
</html>
"@
$html | Out-File -FilePath $OutputPath -Encoding UTF8 -Force
Write-Host "诊断完成！健康评分: $score / 100 [$overallStatus]" -ForegroundColor $(if ($overallStatus -eq 'Healthy') { 'Green' } elseif ($overallStatus -eq 'Warning') { 'Yellow' } else { 'Red' })
Write-Host "HTML 报告已保存至: $OutputPath" -ForegroundColor Cyan
return [PSCustomObject]@{
ComputerName = $env:COMPUTERNAME
Score = $score
Status = $overallStatus
CpuUsage = "$cpuAvg%"
MemoryUsage = "$memUsedPercent%"
Errors24h = $errors.Count
Warnings24h = $warnings.Count
ReportPath = $OutputPath
}
}
$report = Invoke-FullSystemDiagnostic -OutputPath "$env:TEMP\SystemDiagnosticReport.html"
$report
|