app.js

App({

    check(that,func){

        that.func()

    }

})

Page.js

var app = getApp()

Page({

    test(){

        console.log(‘test’)

    }

    onLoad(){

        var that = this

        app.check(that,‘test’)

    }

})

app.js如何写如何调用test呀，大神指教