Today, I followed the method of installing the vue debugging tool referenced on the Internet, and summed up the more complete steps:
Step 1: Go to the link address https://github.com/vuejs/vue-devtools
Step 2: Unzip the package in the link address to the local desktop
Step 3: Win+r command cmd to the virtual environment, execute cd current directory name path
Step 4: Execute cnpm install to install the dependencies in package.json
Step 5: Execute the npm run build command to generate a src file in the vue-devtools-master\shells\chrome path
Step 6: Modify persistent in mainifest.json under the shells>chrome folder to true
Step 7: Enter the extension function page of Google Chrome (directly enter chrome://extensions), open the developer mode, choose to load the unzipped extension, and then put the corresponding vue-devtools-master\shells\chrome path under the path Just put the file in.
Practice, directly start a vue project npm run dev, F12 can see the installed debugging tools~~