index.js

goHome() {

console.log(app);

app.eventbus.emit('logo-test', 'test');

wx.switchTab({

url: '/pages/home/home',

success: function () {

console.log('eee');}

})

home.js

app.eventbus.on('logo-test',(res)=>{

console.log(res)

}

接受不到 求大佬告知