ET9_WebGL_Dev/Server/App/Properties/launchSettings.json

{
  "profiles": {
    "Server.App": {
      "commandName": "Project",
      "commandLineArgs": "--appId=1 --appType=AllServer --config=../Config/StartConfig/LocalAllServer.txt",
      "workingDirectory": "D:\\Source\\Egametang\\netcoreapp2.0"
    }
  }
}