eggjs vscode 调试

在根目录新建 .vscode 目录，该目录下新建 launch.json 文件，文件内容如下：

{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "调试",
      "type": "node",
      "request": "launch",
      "cwd": "${workspaceRoot}/backend",
      "runtimeExecutable": "npm",
      "windows": { "runtimeExecutable": "npm.cmd" },
      "runtimeArgs": [ "run", "debug" ],
      "console": "integratedTerminal",
      "protocol": "auto",
      "restart": true,
      "port": 9999
    }
  ]
}