This article combines code with vscode, because some commands can be visualized through vscode to reduce commands with too much memory.
First, create an initial warehouse on github or code cloud, this step is not much to say, not Baidu. After creation, clone to a local directory
2. Open the cloned project file through vscode.
① Writing a new function in the project requires " create a new git branch"
git checkout -b login // Create a git branch named login
This step can be achieved by vscode: click 
to pop up the add branch window
git branch // View all git branches
②After the creation, the default is to develop and modify the code under this branch (login), without affecting the master branch. . Next, save the code we modified in login to the local git repository
git add. // Add the modified files and newly added files to the local repository
git commit -m "add file" // commit the file added to the warehouse
These two steps can also be achieved through vscode: first click the + sign, then click √
③After the development is completed, merge the branch into the master branch and save it to the local warehouse.
git checkout master // switch to the master branch
git merge login // merge the login branch into the main branch
④ Push the local code to the cloud: git push
3. Refresh the cloud github, it is found that the cloud still has only one master branch
git checkout login // switch to the login branch
git push -u origin login // Push the login branch to the cloud origin repository