区块链实战

寄看 ：区块不存储hash值
，节点领受区块后自力筹算并存储在外埠 。区块区块区块

Version 1

区块相干：

​ 1.定义一个区块的链实链筹划Block

​ a.区块头：6个字段

​ b.区块体：字符串展示data

2.供给一个成立区块的编制

​ NewBlock(参数)

区块链相干

定义一个区块链筹划BlockChain

​ Block数组

供给一个成立BlockChain()的编制

​ NewBlockChain()

供给一个添加区块的编制

​ AddBlock(参数)

block.go文件

package mainimport (	"bytes"	"crypto/sha256"	"time")/*1.定义一个区块的筹划Block​a.区块头：6个字段​b.区块体：字符串展示data*///区块type Block struct { 	Version int64   //版本	PerBlockHash []byte //前一个区块的hash值	Hash []byte //往后区块的hash值
，是战完杂为了简化代码	MerKelRoot []byte  //梅克尔根	TimeStamp int64  //时分抽	Bits int64  //难度值	Nonce int64 //随机值//区块体	Data []byte  //生意信息}/*供给一个成立区块的编制NewBlock(参数)*/func NewBlock(data string ,prevBlockHash []byte) *Block { 	var block Block	block = Block{ 		Version:      1,		PerBlockHash: prevBlockHash,		//Hash:         []byte{ },   	//区块不存储hash值，节点领受区块后自力筹算并存储在外埠。成复		MerKelRoot:   []byte{ },		TimeStamp:    time.Now().Unix(),		Bits:         1,		Nonce:        1,		Data:         []byte(data),	}	block.SetHash()  //加添Hash	return &block}func (block *Block) SetHash() { 	// 源码里面是要传二维切片 func Join(s [][]byte, sep []byte) []byte	tmp :=[][]byte{ 		IntToByte(block.Version),		block.PerBlockHash,		block.MerKelRoot,		IntToByte(block.TimeStamp),		IntToByte(block.Bits),		IntToByte(block.Nonce),	}	data:=bytes.Join(tmp,[]byte{ })    //此后再筹算hash	hash := sha256.Sum256(data)	block.Hash = hash[:]  //变切片}//草创块func NewGensisBlock() *Block{ 	return NewBlock("Genesis Block!",[]byte{ })}

blockChain.go文件

package main/*1. 定义一个区块链筹划BlockChain   Block数组*/type BlockChain struct {    blocks []*Block}/*2. 供给一个成立BlockChain()的编制   NewBlockChain()*/func NewBlockChain() *BlockChain {    block := NewGensisBlock()   return &BlockChain{ blocks:[]*Block{ block}}  //成立只需一个元素的区块链	，初始化}/*3. 供给一个添加区块的编制   AddBlock(参数)*/func (bc *BlockChain)AddBlock(data string)  {    PerBlockHash := bc.blocks[len(bc.blocks)-1].Hash  //这一个区块的哈希是前一块的哈希值   block := NewBlock(data,PerBlockHash)   bc.blocks = append(bc.blocks,block)}

utils.go文件

package mainimport (   "bytes"   "encoding/binary"   "fmt"   "os")func IntToByte(num int64) []byte {    //func Write(w io.Writer, order ByteOrder, data inte***ce{ }) error {    var buffer bytes.Buffer   err := binary.Write(&buffer, binary.BigEndian, num)   CheckErr("IntToByte",err)   return buffer.Bytes()}func CheckErr(position string,err error) {    if err != nil {       fmt.Println("error ,pos:",position,err)      os.Exit(1)   }}

main.go文件

package mainimport "fmt"func main() {    bc := NewBlockChain()   bc.AddBlock("A send B 1BTC")   bc.AddBlock("B send C 1BTC")   for _,block := range bc.blocks {       fmt.Printf("Version : %d\n",block.Version)      fmt.Printf("PerBlockHash : %x\n",block.PerBlockHash)      fmt.Printf("Hash : %x\n",block.Hash)      fmt.Printf("MerKelRoot : %x\n",block.MerKelRoot)      fmt.Printf("TimeStamp : %d\n",block.TimeStamp)      fmt.Printf("Bits : %d\n",block.Bits)      fmt.Printf("Nonce : %d\n",block.Nonce)      fmt.Printf("Data : %s\n",block.Data)   }}

奉行下场

以上就是Go言措辞语区块链实战完成复杂的区块与区块链的具体内容 ，更多关于go言语完成区块与区块链的材料请存眷完竣下载此外相干文章！