从PowerShell中的字符串提取值(使用正则表达式)

# 示例字符串
$str = "Hello, my name is John Doe. My email is john.doe@example.com."

# 正则表达式模式
$pattern = '\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b'

# 使用Select-String提取匹配的值
$email = Select-String -InputObject $str -Pattern $pattern -AllMatches | ForEach-Object { $_.Matches } | ForEach-Object { $_.Value }

# 输出结果
Write-Host "Extracted email: $email"