从Winform中调用cmd修改ip地址

private void setDHCP()
        {
            _doscmd = "netsh interface ip set address 本地连接 DHCP";
            Process p = new Process();
            p.StartInfo.FileName = "cmd.exe";
            p.StartInfo.UseShellExecute = false;
            p.StartInfo.RedirectStandardInput = true;
            p.StartInfo.RedirectStandardOutput = true;
            p.StartInfo.RedirectStandardError = true;
            p.StartInfo.CreateNoWindow = true;
            p.Start();
            p.StandardInput.WriteLine(_doscmd.ToString());
            _doscmd = "netsh interface ip set dns 本地连接 DHCP";
            p.StandardInput.WriteLine(_doscmd.ToString());
            p.StandardInput.WriteLine("exit");
        }

        private void setManual()
        {
            _doscmd = "netsh interface ip set address 本地连接 static " + _ipaddress + " " + _submask + " " + _gateway + " 1";
            Process p = new Process();
            p.StartInfo.FileName = "cmd.exe";
            p.StartInfo.UseShellExecute = false;
            p.StartInfo.RedirectStandardInput = true;
            p.StartInfo.RedirectStandardOutput = true;
            p.StartInfo.RedirectStandardError = true;
            p.StartInfo.CreateNoWindow = true;
            p.Start();
            p.StandardInput.WriteLine(_doscmd.ToString());
            _doscmd = "netsh interface ip set dns 本地连接 static " + _dns;
            p.StandardInput.WriteLine(_doscmd.ToString());
            p.StandardInput.WriteLine("exit");
        }