（新增）增加google统计

Author: ZhiBing(陈治兵)

docs/.vuepress/configs/head.js

@@ -86,5 +86,24 @@ module.exports = [
  src: 'https://hm.baidu.com/hm.js?a809b6f7e6517af8c15c6076273e80fe',
  defer: 'defer',
  async: 'true'
- }]
+ }],
+ // 谷歌统计
+ ['script', {
+ src: 'https://www.googletagmanager.com/gtag/js?id=UA-163860037-1',
+ defer: 'defer',
+ async: 'true'
+ }],
+ // 谷歌统计第二段代码
+ ['script', {}, `
+ (function() {
+ document.onreadystatechange = function() {
+ if (document.readyState == 'complete') {
+ window.dataLayer = window.dataLayer || [];
+ function gtag(){dataLayer.push(arguments);}
+ gtag('js', new Date());
+ gtag('config', 'UA-163860037-1');
+ }
+ }
+ })();
+`]
 ]