在協議緩衝區中添加字符串數組

Question

我想在協議緩衝區消息中添加字符串數組，這是我無法做到的。我已經寫了如下

repeated string data = 1[packed=true]; 

我得到了下面的錯誤：

[packed = true] can only be specified for repeated primitive fields. 

我可能能夠做到這一點與相同語法int數組。我很困惑爲什麼字符串被認爲是非原始類型。 任何人都可以幫助我。 謝謝！

Answer 1

請參閱Protobuf Documentation的「指定字段規則」一節。本質上，僅包裝對數字字段有意義。

保留繁榮報價：

For historical reasons, repeated fields of basic numeric types aren't encoded as efficiently as they could be. New code should use the special option [packed=true] to get a more efficient encoding.