WXOpenBusinessViewReq *req = [WXOpenBusinessViewReq object];
req.businessType = @"wxpayScoreUse";
req.query = @"mch_id=1230000109&package=XXXXXXXX&
timestamp=1530097563&
nonce_str=zyx53Nkey8o4bHpxTQvd8m7e92nG5mG2&sign_type=HMAC-SHA256&sign=029B52F67573D7E3BE74904BF9AEA";
req.extInfo = @"{\"miniProgramType\":0}";
[WXApi sendReq:req];

let wechatInfo = navigator.userAgent.match(/MicroMessenger\/([\d\.]+)/i);
let wechatVersion = wechatInfo[1];
​
if (compareVersion(wechatVersion, '7.0.5') >= 0) {
   goToWXScore();
} else {
   // 提示用户升级微信客户端版本
   window.href = 'https://support.weixin.qq.com/cgi-bin/readtemplate?t=page/common_page__upgrade&
   text=text005&btn_text=btn_text_0'
}
​
/**
 * 跳转微信支付分
 */
function goToWXScore() {
    wx.checkJsApi({
        jsApiList: ['openBusinessView'], // 需要检测的JS接口列表
        success: function (res) {
        // 以键值对的形式返回，可用的api值true，不可用为false
        // 如：{"checkResult":{"openBusinessView":true},"errMsg":"checkJsApi:ok"}
        if (res.checkResult.openBusinessView) {
            wx.invoke(
                'openBusinessView', {
                    businessType: 'wxpayScoreUse',
                    queryString
: 'mch_id=1230000109&package=xxxxx&
			timestamp=1530097563&nonce_str=zyx53Nkey8o4bHpxTQvd8m7e92nG5mG2&sign_type=HMAC-SHA256&
			sign=029B52F67573D7E3BE74904BF9AEA'
                },
                function (res) {
                // 从支付分返回时会执行这个回调函数
                    if (parseint(res.err_code) === 0) {
                    // 返回成功 
                    } else {
                    // 返回失败
                    }
                });
            }
        }
    });
 }
​
 /**
  * 版本号比较
  * @param {string
} v1 
  * @param {string
} v2 
  */
function compareVersion(v1, v2) {
    v1 = v1.split('.')
    v2 = v2.split('.')
    const len = Math.max(v1.length, v2.length)
  
    while (v1.length < len) {
      v1.push('0')
    }
    while (v2.length < len) {
      v2.push('0')
    }
  
    for (let i = 0; i < len; i++) {
      const num1 = parseint(v1[i])
      const num2 = parseint(v2[i])
  
      if (num1 > num2) {
        return 1
      } else if (num1 < num2) {
        return -1
      }
    }
  
    return 0
 }

if (wx.openBusinessView) {
  wx.openBusinessView({
    businessType: 'wxpayScoreUse',
    extraData: {
      package: 'XXXXXXXX'
    },
    success() {
      //dosomething
    },
    fail() {
      //dosomething
    },
    complete() {
      //dosomething
    }
  });
} else {
  //引导用户升级微信版本
}

wx.navigateToMiniProgram({
  appId: 'wxd8f3793ea3b935b8',
  path: 'pages/use/use',
  extraData: {
    package: 'XXXXXXXX',
  },
  success() {
    //dosomething
  },
  fail() {
    //dosomething
  },
  complete() {
    //dosomething
  }
});

// app.js
onShow(res) {
  if (res.scene === 1038) { // 场景值1038：从被打开的小程序返回
    const { appId, extraData } = res.referrerInfo;
    if (appId === miniprogram_appid) { // miniprogram_appid由【创建订单】返回，建议检查是否等于appId，不强制
      let query_id = extraData.query_id;
      let result = this.queryOrderStatus(query_id);
      if (result) {
        // 成功
      } else {
        // 失败
      }
    }
  }
}
​
/**
 * 查询订单状态函数
 * 由商家后台服务提供
 * @param query_id {string
} 单据id，可以在接口【查询订单】进行单据查询
 */
queryOrderStatus: function(query_id) {
  // 商家小程序向商家后台服务请求查询订单状态，
  // 这里的前后端接口和数据协议由商家侧设计
  // 函数返回查询结果，这里以布尔值true代表成功，布尔值false代表失败
}

{
    "id":"EV-2018022511223320873",
    "create_time":"2015-05-20T13:29:35+08:00",
    "resource_type":"encrypt-resource",
    "event_type":"PAYSCORE.USER_CONFIRM",
    "resource" : {
        "algorithm":"AEAD_AES_256_GCM",
        "ciphertext": "...",
        "nonce": "...",
        "associated_data": ""
    },
	"summary": "确认订单"
}

{
    "service_id": "500001", 
    "appid": "wxd678efh567hg6787", 
    "mchid": "1230000109", 
    "sub_appid": "wxd678efh567hg6999",
    "sub_mchid": "1900000109",
    "out_order_no": "1234323JKHDFE1243252", 
    "sub_openid": "oUpF8uMuAJO_M2pxb1Q9zNjWeS6o",
    "state": "DOING", 
    "state_description": "USER_CONFIRM", 
    "service_introduction": "嗨客餐厅用餐",
    "total_amount": "40000", 
    "post_payments": [
        {
            "name": "服务费", 
            "amount": 40000, 
            "description": "每分钟1元"
        }
    ], 
    "post_discounts": [
        {
            "name": "满20减1元", 
            "amount": 1, 
            "description": "不与其他优惠叠加"
        }
    ], 
    "risk_fund": {
        "name": "预估订单费用", 
        "amount": 10000, 
        "description": "就餐的预估费用"
    }, 
    "time_range": {
        "start_time": "20091225091010", 
        "start_time_remark": "xxx",
        "end_time": "20091225091210",
        "end_time_remark": "xxx"
    }, 
    "location": {
        "start_location": "嗨客时尚主题展餐厅", 
        "end_location": "嗨客时尚主题展餐厅"
    }, 
    "attach": "attach", 
    "order_id": "165461131",
    "need_collection": true 
}

{   
    "code": "FAIL",
    "message": "失败"
}