Newman installation
1. Check if newman has been installed
2. Check the installation version you want to choose
3. Enter npm install + the corresponding newman address
4. If there is an error when executing the npm install command, please execute the delegated command
5. Finally use newman -v to see if the installation is successful
Common commands of newman
-e: use environment variables
-g: use global variables
-d: use csv, text.josn data driven
-n: number of loops
-r: cli, html, json, junit --reporter-html-export