//返回上一页
uni.navigateBack({ delta: 1 });

//关闭当前页面重新跳转想新页面，可做刷新当前页面使用
refresh() {
   uni.redirectTo({
       url: '你的当前页面路径'
   });
}

//uniapp原生左上角返回按钮返回上一页更新数据
onBackPress(e) {
		let that = this;
		let objname = {
		avatarurl:this.avatarurl,
		nickname:this.nickname,
		 }
		console.log(that.objname,"178")
	    uni.$emit("refreshData", JSON.stringify(objname));
	},
调用页面
onShow(options) {
		this.refreshData();
		
		},
///
refreshData(){
			uni.$once('refreshData', (e)=> {
				users = JSON.parse(e);
				// let that = this;
				// that.avatarurl = avatarurlobj.avatarurl
				console.log(users,"30")
				// this.initData(); //初始化数据
			});
		},

uni.showModal({
			title:"提示",
			content:"是否将该用户解绑",
			showCancel:false,
			success: function (res) {
				if (res.confirm) {
					console.log('用户点击确定');
				} else if (res.cancel) {
					console.log('用户点击取消');
				}
			}
		});