//自定义后退时的操作onBackPress() {this.back1();return true;},
methods: {
//跳转到 tabBar 页面，并关闭其他所有非 tabBar 页面back1() {uni.switchTab({url: '/pages/mangement/mangement'});},//关闭所有页面，打开到应用内的某个页面。back1() {uni.reLaunch({  url: '/pages/work/work'})},
}