页面1

onShow() {
			uni.$on('address', function(data) {
				that.data.address = data.address
				that.data.coordinate = data.latitude + ',' + data.longitude
				// that.latitude = that.latitude
				// that.longitude = that.longitude
			})
		},

页面2

goback() {
				var that = this
				uni.$emit('address', {
					address: that.address,
					latitude: that.latitude,
					longitude: that.longitude
				});
				uni.navigateBack({
					delta: 1
				})
			},