补充打包压缩插件

package.json

@@ -58,6 +58,7 @@
     "@vue/cli-service": "^4.1.0",
     "@vue/test-utils": "1.0.0-beta.29",
     "axios-mock-adapter": "^1.17.0",
+    "compression-webpack-plugin": "^4.0.0",
     "less": "^3.0.4",
     "less-loader": "^5.0.0",
     "mockjs": "^1.1.0",