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geo s2 geohash

Posted by 夏泽民 Sep 20, 2021

https://github.com/golang/geo 使用golang / geo / s2查找给定区域中是否存在latlng

rect := s2.RectFromLatLng(s2.LatLng{0.0, 0.0})
rect = rect.AddPoint(s2.LatLng{2.0, 2.0})
isThere := rect.ContainsLatLng(s2.LatLng{1.0, 1.0})
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底纹推荐优化

Posted by 夏泽民 Sep 19, 2021

热搜/底纹引导搜索流量

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字符串拼接性能

Posted by 夏泽民 Sep 19, 2021

golang中字符串拼接方法 += fmt.sprintf append buffer.WriteString copy 效率：copy > append > buf.WriteString > += > fmt.Sprintf 所以请慎用fmt.Sprinf 和 +=

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selector

Posted by 夏泽民 Sep 19, 2021

当需要从集群外部访问k8s里的服务的时候，方式有四种：ClusterIP（默认）、NodePort、LoadBalancer、ExternalName 。

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httputil ReverseProxy

Posted by 夏泽民 Sep 19, 2021

Reverse Proxy用途：

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