Go语言实现PoW共识算法（一）区块定义与数据串行化

package main import ( "bytes" "crypto/sha256" "strconv" "time" ) type Block struct { Timestamp int64 Data []byte PrevBlockHash []byte Hash []byte } func (b *Block) SetHash() { timestamp := []byte(strconv.FormatInt(b.Timestamp, 10)) headers := bytes.Join([][]byte{b.PrevBlockHash, b.Data, timestamp}, []byte{}) hash := sha256.Sum256(headers) b.Hash = hash[:] } func NewBlock(data string, prevBlockHash []byte) *Block { block := &Block{time.Now().Unix(), []byte(data), prevBlockHash, []byte{}} block.SetHash() return block } func NewGenesisBlock() *Block { return NewBlock("Genesis Block", []byte{}) }