1. First add the url of the master database to the local machine. git remote add <RepoName> <URL> 2 get the modification record of the master database git fetch -- get the modification git merge on the server -- merge, merge the master database to your branch git pull -- get the modification and merge git push -- submit the modification to the server Pull Request -- apply for the merge, merge the modification to the master database, and click fork, you will create your own branch. You can submit your own issues on the master database, add the url of the master database to the local branch. 3. Create a New Pull Request. Click the Pull Requests button as shown in the following figure on the New pull request page. Then, click the New Pull Request button, enter title and content in the new page, and click send pull request to submit the new request. 4. view the submission results in community-based collaboration. Common users only have the submission function and do not have the Merge function. Only the Administrator has the Merge function. The administrator can click the Merge Pull Request button to Merge the results. After the Merge is completed, the system will automatically close your request. After a common user submits the request, the system will automatically close the request. After clicking the Send button again, we will go to the Pull Requests page again, so there is no record under the open option, however, there is a request submission record under the Close option, as shown in: 5 branch operation command git branch -- View branch git branch-d <branch name> -- delete branch git branch-D <branch name> -- force Delete git checkout-B <branch name> -- create branch git checkout <branch name> -- switch branch git merge -- no-ff <branch 1> -- merge branch PS: git branch management. You can see that many problems have been encountered in the blog development process written by instructor Ruan Yifeng. without affecting the main branches, we will create a backup for the main branch, another set, also known as the shadow of the main branch, is used to perform various operations such as adding, modifying, and deleting the shadow. After testing on the branch, it is merged to the master database, as shown in, create the branch command git branch -- continuous editing