基本語法
可參考:https://gobyexample.com/string-formatting
印出struct
fmt.Printf("%+v\n", r)
byteArray []byte 轉為string
string(somedata[:])
處理錯誤訊息
使用err.Error()轉為字串
if err != nil {
if err.Error() == "leveldb: not found" {
......
}
fmt.Printf("err %s \n", err)
}
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