探索 GoLang 与区块链的交叉领域：构建更佳应用程序

package main

import (
    "crypto/sha256"
    "fmt"
    "time"
)

type Block struct {
    Index       int
    Timestamp   string
    Data        string
    PrevBlockHash string
}

func main() {
    // 创建创世块
    genesisBlock := Block{0, time.Now().String(), "Genesis Block", ""}

    blockchain := []*Block{&genesisBlock}

    // 添加新块
    newBlock := Block{
        len(blockchain),
        time.Now().String(),
        "New Block",
        calculateHash(genesisBlock),
    }

    blockchain = append(blockchain, &newBlock)

    // 打印区块链
    for _, block := range blockchain {
        fmt.Printf("Block %d: %s\n", block.Index, block.Data)
    }
}

// 计算块的哈希值
func calculateHash(block Block) string {
    data := fmt.Sprintf("%d%s%s%s", block.Index, block.Timestamp, block.Data, block.PrevBlockHash)
    hash := sha256.Sum256([]byte(data))
    return fmt.Sprintf("%x", hash)
}