[链接](https://segmentfault.com/a/1190000007952589) ***** ***** 在小米官网copy的代码如下 ``` <link rel="icon" href="//s01.mifile.cn/favicon.ico" type="image/x-icon"> <link rel="shortcut icon" href="//s01.mifile.cn/favicon.ico" type="image/x-icon"> ``` 应该在href中加`https:`不然出不来图标 ``` <link rel="icon" href="https://s01.mifile.cn/favicon.ico" type="image/x-icon"> <link rel="shortcut icon" href="https://s01.mifile.cn/favicon.ico" type="image/x-icon"> ```