支付宝小程序重写tabbar底部导航，供大家参考，具体内容如下
1.app.js中代码如下
editTabBar: function () {
var e = this.globalData.tabbar, a = getCurrentPages(), t = a[a.length - 1], s = t.route;
console.log(t)
console.log(s)
0 != s.indexOf("/") && (s = "/" + s);
for (var n in e.items) e.items[n].selected = !1, e.items[n]
