Push and pull意思
"Push" and "pull" are terms used in various contexts, including physics, technology, and everyday actions. Here are the general meanings of these terms:
Push:
- Physics: To push is to exert force upon an object, causing it to move in the direction of the force. This can be done by physically applying a force with a hand or another object.
- Technology: In software development, "push" refers to the action of sending data from one system to another without the need for the receiver to request it. For example, in version control systems like Git, pushing updates to a remote repository is a common operation.
- Everyday Action: In everyday usage, to push means to exert force against something to move it away from the source of the force.
Pull:
- Physics: To pull is to exert force upon an object in a direction towards the source of the force. This can also be done by physically applying a force with a hand or another object.
- Technology: In software development, "pull" refers to the action of retrieving data from another system. For example, in version control systems, pulling changes from a remote repository to your local repository is a common operation.
- Everyday Action: In everyday usage, to pull means to exert force upon an object to move it towards the source of the force.
In the context of version control systems like Git, the terms "push" and "pull" are particularly relevant. A developer might push their local changes to a remote repository, and then another developer might pull those changes from the remote repository to their local environment.