常用自定义搜索
百度
http://www.baidu.com/s?wd={query}
掘金
https://juejin.im/search?query={query}
简书
http://www.jianshu.com/search?q={query}
MDN
https://developer.mozilla.org/zh-CN/search?q={query}
segmentfalut
https://segmentfault.com/search?q={query}
知乎
https://www.zhihu.com/search?type=content&q={query}