用C++编一个模拟比特币挖掘界面

好的，以下是一个简单的模拟比特币挖掘界面的C++代码：

#include <iostream>
#include <string>
#include <ctime>
#include <cstdlib>

using namespace std;

// 定义区块结构体
struct Block {
    int index;
    string data;
    string timestamp;
    string previousHash;
    string hash;
    int nonce;
};

// 计算哈希值函数
string calculateHash(int index, string data, string timestamp, string previousHash, int nonce) {
    string str = to_string(index) + data + timestamp + previousHash + to_string(nonce);
    return str; // 这里简化了哈希计算过程，直接将所有信息拼接起来返回
}

// 随机数生成函数
int generateRandomNumber() {
    return rand();
}

// 挖矿函数
Block mineBlock(int index, string data, string previousHash) {
    string timestamp = to_string(time(NULL));
    int nonce = 0;
    string hash = "";
    while (hash.substr(0, 4) != "0000") { // 满足哈希前4位是0的条件
        nonce = generateRandomNumber();
        hash = calculateHash(index, data, timestamp, previousHash, nonce);
    }
    Block block = {index, data, timestamp, previousHash, hash, nonce};
    return block;
}

// 主函数
int main() {
    srand(time(NULL)); // 初始化随机数生成器
    int numBlocks;
    cout << "请输入要生成的区块数量：";
    cin >> numBlocks;
    cout << endl;

    // 生成创世区块
    Block genesisBlock = {0, "Genesis Block", to_string(time(NULL)), "0", "", 0};
    genesisBlock.hash = calculateHash(genesisBlock.index, genesisBlock.data, genesisBlock.timestamp, genesisBlock.previousHash, genesisBlock.nonce);

    // 打印创世区块信息
    cout << "区块" << genesisBlock.index << "：\n";
    cout << "数据：" << genesisBlock.data << endl;
    cout << "时间戳：" << genesisBlock.timestamp << endl;
    cout << "前一区块哈希值：" << genesisBlock.previousHash << endl;
    cout << "当前哈希值：" << genesisBlock.hash << endl;
    cout << "随机数：" << genesisBlock.nonce << endl;
    cout << endl;

    // 生成其他区块
    Block previousBlock = genesisBlock;
    for (int i = 1; i < numBlocks; i++) {
        Block block = mineBlock(i, "Block " + to_string(i), previousBlock.hash);
        previousBlock = block;

        // 打印区块信息
        cout << "区块" << block.index << "：\n";
        cout << "数据：" << block.data << endl;
        cout << "时间戳：" << block.timestamp << endl;
        cout << "前一区块哈希值：" << block.previousHash << endl;
        cout << "当前哈希值：" << block.hash << endl;
        cout << "随机数：" << block.nonce << endl;
        cout << endl;
    }

    return 0;
}

运行程序后，会提示输入要生成的区块数量。程序会先生成创世区块，然后根据前一个区块的哈希值生成后续区块，直到达到指定数量。每个区块的哈希值需要满足前4位是0的条件，否则就需要重新生成随机数。程序会打印每个区块的信息，包括数据、时间戳、前一区块哈希值、当前哈希值和随机数。