在Angular项目的angular.json文件中，找到"options"下的"serving"属性，在属性值中加入"host"和"port"，然后将Angular应用程序部署到指定的主机和端口。例如：

"options": {
  "outputPath": "dist/my-app",
  "index": "src/index.html",
  "main": "src/main.ts",
  "polyfills": "src/polyfills.ts",
  "tsConfig": "src/tsconfig.app.json",
  "assets": [
    "src/favicon.ico",
    "src/assets"
  ],
  "styles": [
    "src/styles.css"
  ],
  "scripts": [],
  "allowedCommonJsDependencies": [],
  "webWorkerTsConfig": "src/tsconfig.worker.json",
  "aot": true,
  "buildOptimizer": false,
  "optimization": true,
  "sourceMap": true,
  "namedChunks": false,
  "outputHashing": "none",
  "statsJson": false,
  "watch": false,
  "serve": {
    "host": "0.0.0.0",
    "port": 4200
  }
}

这样就可以在网络中访问您的Angular应用程序。您还需要确保您的服务器已配置正确，并已从Internet上可访问。