huaanglimeng/pages/knowledge/index.js

const { getCategories } = require('../../utils/knowledgeData');

Page({
    data: {
        categories: []
    },

    onLoad() {
        this.setData({
            categories: getCategories()
        });
    },

    // 返回上一页
    handleBack() {
        wx.navigateBack({
            delta: 1
        });
    },

    // 点击分类卡片
    goToList(e) {
        const category = e.currentTarget.dataset.category;
        wx.navigateTo({
            url: `/pages/knowledge/list?category=${category}`
        });
    }
});