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In React, custom Hooks allow you to extract component logic into reusable functions. Custom Hooks are essentially ordinary JavaScript functions, but they must follow two rules:

1. Naming conventions: The name of the custom Hook should start withuseThis convention helps you and other developers more easily identify which functions are Hooks.
2. Calling inside a function component: You can only call custom Hooks from a function component or inside another custom Hook. Do not call them from a class component.

Here are the basic steps on how to create a custom Hook:

Step 1: Define auseFunction starting with

First, you need to create a function and prefix its name withuse。

function useCustomHook() {
   
  // 你的Hook逻辑
}
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Step 2: Add state or other Hooks

Inside your custom Hook, you can use React's built-in Hooks, such asuseState、useEffectwait.

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