GOB

golang中使用的二进制序列化的包，类似python pickle,java serialization ,常用于rpc远程方法调用

basic

• 为各种数据类型实现了自定义编码
• 对于数据流，流的最前面是对数据类型的描述
• 指针不能被传递，但指针所指可以，that is, the values are flattened（不懂这句话改如何翻译）.空指针不被允许，因为它没有值。Recursive types work fine, but recursive values (data with cycles) are problematic. This may change.
• To use gobs, create an Encoder and present it with a series of data items as values or addresses that can be dereferenced to values.

struct { A, B int } can be sent from or received into any of these Go types:

struct { A, B int } // the same struct { A, B int } // extra indirection of the struct struct { A, **B int } // extra indirection of the fields struct { A, B int64 } // different concrete value type; see below It may also be received into any of these:

struct { A, B int } // the same struct { B, A int } // ordering doesn't matter; matching is by name struct { A, B, C int } // extra field (C) ignored struct { B int } // missing field (A) ignored; data will be dropped struct { B, C int } // missing field (A) ignored; extra field (C) ignored. Attempting to receive into these types will draw a decode error:

struct { A int; B uint } // change of signedness for B struct { A int; B float } // change of type for B struct { } // no field names in common struct { C, D int } // no field names in common

Type and Value

Functions and channels will not be sent in a gob。 A struct field of chan or func type is treated exactly like an unexported field and is ignored.

用gob实现结构体的深拷贝

func deepCopy(dst, src interface{}) error {
    var buf bytes.Buffer
    if err := gob.NewEncoder(&buf).Encode(src); err != nil {
        return err
    }
    return gob.NewDecoder(bytes.NewBuffer(buf.Bytes())).Decode(dst)
}

同理，用json也可以：先把struct序列化保存到一个buffer里面，然后将buffer里面的Byte()数据进行反序列化到指定对象里面即可