小程序的搭建

  代码如下：
 "tabBar": {
    "backgroundColor": "#fff",
    "color": "#8896cd",
    "selectedColor": "#708090",
    "list": [
      {
        "pagePath": "pages/index/index",
        "text": "首页",
        "iconPath": "/images/index.png",
        "selectedIconPath": "/images/indexing.png"
      },
      {
        "pagePath": "pages/face/face",
        "text": "人脸对比",
        "iconPath": "/images/facegay.png",
        "selectedIconPath": "/images/face.png"
      },
      {
        "pagePath": "pages/detection/detection",
        "text": "活体检测",
        "iconPath": "/images/huo2.png",
        "selectedIconPath": "/images/huo.png"
      }
    ]
  },

需要注意的是路径问题，图片路径直接引入即可，用../会报错，"backgroundColor": "#fff",是背景颜色， "color": "#8896cd",是 字体颜色，"selectedColor": "#708090",是选中高亮的颜色，还有图片类型要一致（png!==PNG）.