Right click on the local project
git init
git add .
git commit -m "注释"
git remote add origin 地址
# 修改分支master为main
git branch -m master main
# 这个关键，因为之前在gitlab创建仓库有默认文件
git pull origin main --allow-unrelated-histories
# git push origin main
Error in the last step:
GitLab: You are not allowed to push code to protected branches on this project.
Go to gitlab to modify the account permission developer permission for uploading code as shown below
Because:
English
Chinese
Can be modified Developers can push
