brosoul
这个看个人习惯把，比如用 go-kit/kit/log 日志包的一个代码片段
import (
"github.com/go-kit/kit/log"
"github.com/go-kit/kit/log/level"
)
logger := log.NewLogfmtLogger(os.Stdout)
level.Error(logger).Log("err", err)
level.Info(logger).Log("msg", "config file changed")
输出结果是：
level=error err=“received signal interrupt”
level=info err=“config file changed”
然后我查询的时候就可以通过关键字 received signal interrupt 搜索
