C#调用PowerShell无法以管理员身份运行

代码

using System.Diagnostics;
var p = new Process//基本配置
{
    StartInfo = {
        WorkingDirectory = Environment.CurrentDirectory,
        UseShellExecute = false,
        FileName = "PowerShell",
        CreateNoWindow = true,
        Verb = "runas",//以管理员身份启动没用
        RedirectStandardInput = true,
        RedirectStandardOutput = true,
        RedirectStandardError = true,
}
};
p.Start();
p.StandardInput.WriteLine("Set-Item wsman:\\localhost\\Client\\Trustedhosts -value '123' -Force -Confirm:$false");
p.StandardInput.WriteLine("Enable-PSRemoting -SkipNetworkProfileCheck");
p.StandardInput.WriteLine("Get-Item wsman:\\localhost\\Client\\Trustedhosts");
p.StandardInput.Close();
String error = null;
String output = null;
while (!p.StandardOutput.EndOfStream)
{
    output += p.StandardOutput.ReadToEnd();
    error += p.StandardError.ReadToEnd();
}
Console.WriteLine("-----------------------------------------------------------------------------");
Console.WriteLine(output);//输出执行信息
Console.WriteLine("-----------------------------------------------------------------------------");
Console.WriteLine(error);//输出执行信息
Console.WriteLine("-----------------------------------------------------------------------------");
p.Close();

结果

改app.manifest可以我知道，有没有代码上能解决的