1wx.navigateToMiniProgram({
2  appId: 'wx179335ce27355ca8',
3  path: `trafficCoupon/pages/index/index?mch_code=${mch_code}&token=${token}`,
4  success() {
5    // 跳转成功
6  },
7  fail() {
8    // 跳转失败
9  }
10});