vue的watch用法

Vue中的watch用法有三种，常用用法、handler方法和immediate选项。

常用用法是在Vue实例中使用watch属性来监听数据的变化。例如，可以在模板中使用v-model绑定一个输入框的值，然后在watch中监听这个值的变化，当值发生改变时执行相应的操作。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *3* [vue中watch的详细用法](https://blog.csdn.net/only_alive/article/details/113484809)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *2* [Vue中watch的用法](https://blog.csdn.net/weixin_43953503/article/details/127685230)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
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