 href="/engineering/channel/">channel 操作规则</a></li>
<li>
  <a href="/engineering/struct/">结构体使用技巧</a></li>
<li>
  <a href="/engineering/slice/">切片使用技巧</a></li>
<li>
  <a href="/engineering/json/">JSON 使用技巧</a></li>
<li>
  <a href="/engineering/embed/">embed 嵌入文件</a></li>
<li>
  <a href="/engineering/expvar/">expvar 监控接口状态</a></li>
<li>
  <a href="https://dbwu.tech/posts/golang_data_race/">数据竞态</a></li>
<li>
  <a href="/engineering/error_h