JSAPI调起支付分授权页

1let wechatInfo = navigator.userAgent.match(/MicroMessenger\/([\d\.]+)/i);
2let wechatVersion = wechatInfo[1];
3
4if (compareVersion(wechatVersion, '7.0.5') >= 0) {
5   goToWXScore();
6} else {
7   // 提示用户升级微信客户端版本
8   window.href = 'https://support.weixin.qq.com/cgi-bin/readtemplate?t=page/common_page__upgrade&
9   text=text005&btn_text=btn_text_0'
10}
11
12/**
13 * 跳转微信支付分
14 */
15function goToWXScore() {
16    wx.checkJsApi({
17        jsApiList: ['openBusinessView'], // 需要检测的JS接口列表
18        success: function (res) {
19        // 以键值对的形式返回，可用的api值true，不可用为false
20        // 如：{"checkResult":{"openBusinessView":true},"errMsg":"checkJsApi:ok"}
21        if (res.checkResult.openBusinessView) {
22            wx.invoke(
23                'openBusinessView', {
24                    businessType: 'wxpayScoreEnable',
25                    queryString
26:'apply_permissions_token=AAQTnZoAAAABAAAAAAA-82Zwq2wMeohrOrWEZiAAAABcwQVtru-5k9MmEOZJ_Pv_Nq7Cw56dNKKN5EjZKnt5jf2ELJMexxwojyqA5EXan-WSwpRhLgBZYm-e9iZ7nLLhTzJLT4qakuzmTPoY64kYxO-8G7Frx8D3sScFf7QOZt8ZMnyXGF-jHx6TMjlGdWti6K0jqAYp_CyALFJxBrEbOvLlJ_vdllvc33W5XV8'
27                },
28                function (res) {
29                // 从支付分返回时会执行这个回调函数
30                    if (parseint(res.err_code) === 0) {
31                    // 返回成功 
32                    } else {
33                    // 返回失败
34                    }
35                });
36            }
37        }
38    });
39 }
40
41 /**
42  * 版本号比较
43  * @param {string
44} v1 
45  * @param {string
46} v2 
47  */
48function compareVersion(v1, v2) {
49    v1 = v1.split('.')
50    v2 = v2.split('.')
51    const len = Math.max(v1.length, v2.length)
52  
53    while (v1.length < len) {
54      v1.push('0')
55    }
56    while (v2.length < len) {
57      v2.push('0')
58    }
59  
60    for (let i = 0; i < len; i++) {
61      const num1 = parseint(v1[i])
62      const num2 = parseint(v2[i])
63  
64      if (num1 > num2) {
65        return 1
66      } else if (num1 < num2) {
67        return -1
68      }
69    }
70  
71    return 0
72 }