如何让标题1和标题2不一样？ 

修改根目录下的App.vue（核心代码如下）

<script>
	export default {
		onLaunch() {
			// 监听各种跳转----------------------------------------
			['navigateTo', 'redirectTo', 'reLaunch', 'switchTab', 'navigateBack', ].forEach(v => {
				uni.addInterceptor(v, {
					success: e => this.watchRouter(e),
				})
			});
			this.watchRouter();//首次路由跳转
		}, 
		methods: {
			watchRouter(d) {
				this.$nextTick(() => {
					document.title = `修改小程序顶部标题`;//修改小程序顶部标题
				});
			}, 
		},
	}
</script>