{
    "usingComponents": {
        "my-component": "../components/component/component",
    }
}

<my-component id="myComponent"></my-component>

Page({
  //...
  onLoad: function () {
    let myComponent = this.selectComponent(‘#myComponent‘); // 页面获取自定义组件实例
    myComponent.componentInnerFunction(); // 通过实例调用组件事件
  }
  //...
})

Component({
    //...
    methods: {
        componentInnerFunction: function() {
            console.log(‘i am inner function‘);
        }
    }
    //...
})