properties: {

    show : {
        type : Boolean,
        value : false,
        observe : () => {
            console.log(123);
        }
    }
},

ready() {
    let that = this;
    setTimeout(() => {
        console.log('timeout');
        that.setData({
            show : true
        });
    }, 3000);
}

为什么更改了show的值，show属性的observe却没有触发