无法使用c#运行命令

using System;
using System.Diagnostics;

class Program
{
    static void Main()
    {
        string command = "ping www.example.com"; // 要执行的命令
        ProcessStartInfo psi = new ProcessStartInfo("cmd.exe", "/c " + command); // 创建一个新的进程，并指定要执行的命令
        psi.RedirectStandardOutput = true;
        psi.UseShellExecute = false;
        psi.CreateNoWindow = true;

        Process process = new Process();
        process.StartInfo = psi;
        process.OutputDataReceived += Process_OutputDataReceived;

        process.Start(); // 启动进程
        process.BeginOutputReadLine();

        process.WaitForExit(); // 等待进程执行完毕
        process.Close();
    }

    static void Process_OutputDataReceived(object sender, DataReceivedEventArgs e)
    {
        if (!string.IsNullOrEmpty(e.Data))
        {
            Console.WriteLine(e.Data);
        }
    }
}