idwma

$IP_URL = "127.0.0.1 www.bing.com"

if ((Get-Content $env:windir\System32\drivers\etc\hosts | ?{ $_ -match "$($IP_URL -replace '\s+','\s+')" }) -eq $null)
{
	"$IP_URL" | ac "$env:windir\System32\drivers\etc\hosts"
	echo "已添加！"
}
else
{
	echo "已存在"
}
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idwma

回复 3# 5i365


    你看这两个是一样的吗?

$IP_URL = "127.0.0.1 www.bing.com"
$IP_URL11 = "127.0.0.1   www.bing.com"
$IP_URL -match $IP_URL11
$IP_URL -match "$($IP_URL11 -replace '\s+','\s+')"
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idwma

回复 5# 5i365

试试第一行多加几个空格前后增加中间穿插若干个空格
是不是感觉这个替换多于了,不加也可以的

idwma

$IP_URL = @(
        "127.0.0.1 www.bing.com"
        "127.0.0.1 www.sina.com"
)

$IP_URL -notmatch "$((Get-Content $env:windir\System32\drivers\etc\hosts | ?{ $_ -match "$($IP_URL -join '|')"}) -join '|')"|ac "$env:windir\System32\drivers\etc\hosts"
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idwma

$IP_URL = @(
        "127.0.0.1 www.bing.com"
        "127.0.0.1 www.sina.com"
)
$a=(Get-Content "$env:windir\System32\drivers\etc\hosts" | ?{ $_ -match "$($IP_URL -join '|')"}) -join '|'
if ($a -eq '')
{
	$IP_URL | ac "$env:windir\System32\drivers\etc\hosts"
	echo "已添加！"
}
else
{
	$IP_URL -notmatch "$a" | ac "$env:windir\System32\drivers\etc\hosts"
	echo "已存在"
}
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idwma

回复 14# 5i365

$Hosts = "$env:windir\System32\drivers\etc\hosts"
$a=gc $Hosts
$urls = @(
	"www.baidu.com"
	"www.bing.com"
) |
foreach{
if($a[-1] -ne ''){ac $hosts ''}elseif ((gc $Hosts | Select-String $_) -eq $null)
	{
		ac $hosts "127.0.0.1 $_"
	}
}
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idwma

这么绕的吗,直接用记事本打开不好吗