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build.ps1

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+# 离线构建脚本：本机无法访问任何 Go 模块源，全部依赖取自本地模块缓存
+$ErrorActionPreference = 'Stop'
+$root = Split-Path -Parent $MyInvocation.MyCommand.Path
+$env:GOFLAGS = '-mod=mod'
+$env:GOPROXY = 'off'
+$env:GOSUMDB = 'off'
+$env:GOCACHE = Join-Path $root '.gocache'
+$env:GOTMPDIR = Join-Path $root '.gotmp'
+New-Item -ItemType Directory -Force -Path $env:GOCACHE, $env:GOTMPDIR | Out-Null
+
+Push-Location $root
+try {
+    Write-Host '正在编译…' -ForegroundColor Cyan
+    go build -trimpath -ldflags '-s -w' -o daili.exe .
+    if ($LASTEXITCODE -ne 0) { throw "编译失败（退出码 $LASTEXITCODE）" }
+    $f = Get-Item daili.exe
+    Write-Host ("编译完成: {0}  {1:N1} MB" -f $f.Name, ($f.Length / 1MB)) -ForegroundColor Green
+} finally {
+    Pop-Location
+}