app.vue

    watch: {
        $route: {
            handler: function (val, oldVal) {
                this.$nextTick(function () {
                    //页面加载完成后执行
                    var inputs = document.getElementsByTagName("input");
                    for (var i = 0; i < inputs.length; i++) {
                        inputs[i].onblur = function () {
                            document.documentElement.scrollTop = 0;
                            document.body.scrollTop = 0;
                        };
                    }
                    var textarea = document.getElementsByTagName("textarea");
                    for (var i = 0; i < textarea.length; i++) {
                        textarea[i].onblur = function () {
                            document.documentElement.scrollTop = 0;
                            document.body.scrollTop = 0;
                        };
                    }
                });
            },
            // 深度观察监听
            deep: true,
        },
    },