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Vue 'methods' 选项


示例

methods 选项中使用方法来切换消息。

export default {
  data() {
    return {
      msg: 'Hello World!',
      showMsg: false
    };
  },
  methods: {
    toggleMsg() {
      this.showMsg = !this.showMsg;
    }
  }
};
运行示例 »

定义和用法

The methods 选项是一个对象,包含在 Vue 实例上声明的所有方法。

方法可以直接调用(不使用 this 关键字),从 Vue 应用程序的 <template> 中调用,例如当方法设置为在事件发生时运行时,使用 v-on 指令。

必须使用 this 关键字从 Vue 实例内部调用方法,例如当一个方法被另一个方法调用时。

注意:在声明方法时应避免使用箭头函数,因为 Vue 实例无法从箭头函数内部使用 this 关键字访问。


相关页面

Vue 教程: Vue 方法

Vue 教程: Vue v-on 指令


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