How to retrieve new code that disappears after git upload

In the process of using Git for code management, sometimes the new code suddenly disappears after uploading the code. At this time, many people will feel very confused and anxious and don't know how to deal with it. The following will introduce to you several reasons that may cause the new code to disappear, as well as the corresponding solutions.

1. The code may be overwritten

In some cases, we may make some modifications before uploading the new code, causing the modified code version to be different from the version before uploading different. At this time, if you directly use Git to upload, the new code may be overwritten by the old code, causing the new code to disappear.

Solution: Before uploading new code, we can first use Git's "pull" command to pull the code in the remote library to the local, then modify it, and finally use "commit" and "push" Command to upload new code. This can effectively avoid the problem of new code being overwritten.

2. It may be a branch switching error

If we use multiple branches during code management, improper operation when switching branches may also cause the new code to disappear. For example, we may have switched to the wrong branch before uploading new code, and no new code was uploaded to this branch, causing the new code to disappear.

Solution: When performing branch switching operations, be very careful and confirm the branch you are on before uploading the code. If you find that the new code disappears after uploading, you can use Git's "checkout" command to switch to the correct branch again, and then upload the new code again.

3. It may be caused by conflicts

Sometimes, the new code we upload conflicts with the existing code in the remote library, causing the new code to disappear. This situation is usually caused by multiple people making changes to the same code at the same time.

Solution: In this case, we need to use Git's "merge" command to merge the modified code with the code in the remote library, and then upload the new code. In addition, when making code modifications, we must also avoid modifying the same code with others to avoid conflicts.

4. The code may have been deleted

Sometimes, when we manage the code locally, we may delete some files or folders by mistake, causing the new code to disappear.

Solution: If you find that the new code has disappeared, first check whether there are accidentally deleted files or folders in the local code library. If available, you can use Git's "reset" command to restore the code base to its previous state, and then re-upload the new code.

In general, during the process of code management, you must always pay attention to the version and branch of the code to avoid some unpredictable errors. If the new code disappears, we need to find out the reason in time and take appropriate measures to solve the problem, so as to effectively avoid code loss.

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