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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                >[success] # 組件的生命周期 1. **組件的生命周期,指的是組件自身的一些函數,這些函數在特殊的時間點或遇到一些特殊的框架事件時被自動觸發** 2. 其中,最重要的生命周期是 `created attached detached `,包含一個組件實例生命流程的最主要時間點 ![](https://img.kancloud.cn/da/e7/dae7dfb089542c22513b47a77b80e38e_1030x381.png) 3. 組件所在頁面的生命周期,它們并非與組件有很強的關聯,但有時組件需要獲知,以便組件內部處理,樣的生命周期稱為“組件所在頁面的生命周期”,在 pageLifetimes 定義段中定義。 ![](https://img.kancloud.cn/da/e2/dae241957013e826e7f635a227332650_1060x260.png) >[danger] ##### 案例 1. 在組件的`Component` 函數中定義 ~~~js Component({ lifetimes: { created() { console.log("組件被創建created"); }, attached() { console.log("組件被添加到組件樹中attached"); }, detached() { console.log("組件從組件樹中被移除detached"); } }, pageLifetimes: { show() { console.log("page show"); }, hide() { console.log("page hide"); } } }) ~~~
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