(4) 测试代码
func main() {
	// 初始化区块链
	blockchain := Blockchain{
		Chain: []Block{CreateGenesisBlock()},
	}

	// 添加两个区块
	block1 := Block{
		Index:        1,
		Timestamp:    time.Now().String(),
		Transactions: []Transaction{{From: "Alice", To: "Bob", Amount: 50}},
	}
	blockchain.AddBlock(block1)

	block2 := Block{
		Index:        2,
		Timestamp:    time.Now().String(),
		Transactions: []Transaction{{From: "Bob", To: "Charlie", Amount: 30}},
	}
	blockchain.AddBlock(block2)

	// 打印区块链
	jsonData, _ := json.MarshalIndent(blockchain, "", "  ")
	fmt.Println(string(jsonData))

	// 验证链是否合法
	fmt.Println("区块链是否有效?", blockchain.IsValid())
}
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3. 扩展功能实现思路

(1) 交易与钱包
type Transaction struct {
	From   string
	To     string
	Amount int
	Signature string // 交易签名
}
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(2) P2P 网络
(3) 持久化存储
(4) 共识算法升级

4. Go 语言的优势


5. 生产级区块链框架


6. 学习资源


Go 语言是构建高性能、高可靠性区块链系统的理想选择,尤其适合需要处理高并发交易或复杂共识机制的场景。

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