编辑代码

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <ctype.h>

#define START_CASH 1000
#define ROUNDS 20
#define MIN_PRICE 1
#define MAX_PRICE 10
#define MIN_SHARES 1
#define MAX_SHARES 100

// 公司名称池
const char *COMPANIES[] = {
    "腾讯", "阿里", "字节", "华为", 
    "美团", "京东", "百度", "小米"
};
const int NUM_COMPANIES = sizeof(COMPANIES) / sizeof(COMPANIES[0]);

int main() {
    srand(time(NULL)); // 初始化随机种子
    int cash = START_CASH;
    int round_count = 0;
    char play_again;
    
    printf("===== 股票投资模拟器 =====\n");
    printf("初始资金: %d元\n\n", START_CASH);
    
    do {
        // 随机选择公司
        const char *company = COMPANIES[rand() % NUM_COMPANIES];
        
        // 生成初始股价 (1-10整数)
        int price = rand() % (MAX_PRICE - MIN_PRICE + 1) + MIN_PRICE;
        int shares_held = 0;  // 玩家持有股数
        
        printf("===== 第 %d 局开始 =====\n", ++round_count);
        printf("公司: %s\n", company);
        printf("当前股价: %d元\n\n", price);
        
        // 20回合游戏
        for (int round = 1; round <= ROUNDS; round++) {
            // 股价变动 (-1到+1元)
            int change = (rand() % 3) - 1; // -1, 0, 或 +1
            price += change;
            
            // 确保股价在1-10元之间
            if (price < MIN_PRICE) price = MIN_PRICE;
            if (price > MAX_PRICE) price = MAX_PRICE;
            
            printf("--- 回合 %d ---\n", round);
            printf("当前股价: %d元 (%+d元)\n", price, change);
            printf("你的现金: %d元\n", cash);
            printf("持有股数: %d\n", shares_held);
            
            // 获取玩家操作
            char action;
            int shares_to_trade;
            int valid = 0;
            
            while (!valid) {
                printf("\n操作: (B)买进 (S)卖出 (P)跳过: ");
                scanf(" %c", &action);
                action = toupper(action);
                
                if (action == 'P') {
                    valid = 1; // 跳过不需要额外输入
                    printf("跳过本回合\n");
                } else if (action == 'B' || action == 'S') {
                    printf("交易股数 (%d-%d): ", MIN_SHARES, MAX_SHARES);
                    if (scanf("%d", &shares_to_trade) != 1) {
                        printf("输入无效！\n");
                        while (getchar() != '\n'); // 清空输入缓冲区
                        continue;
                    }
                    
                    if (shares_to_trade < MIN_SHARES || shares_to_trade > MAX_SHARES) {
                        printf("股数范围 %d-%d！\n", MIN_SHARES, MAX_SHARES);
                        continue;
                    }
                    
                    int cost = shares_to_trade * price;
                    
                    if (action == 'B') {
                        if (cost > cash) {
                            printf("现金不足！需要%d元，只有%d元\n", cost, cash);
                        } else {
                            cash -= cost;
                            shares_held += shares_to_trade;
                            printf("买入 %d 股，花费 %d元\n", shares_to_trade, cost);
                            valid = 1;
                        }
                    } else { // 卖出
                        if (shares_to_trade > shares_held) {
                            printf("持股不足！只有%d股\n", shares_held);
                        } else {
                            cash += cost;
                            shares_held -= shares_to_trade;
                            printf("卖出 %d 股，获得 %d元\n", shares_to_trade, cost);
                            valid = 1;
                        }
                    }
                } else {
                    printf("无效操作！请选择 B/S/P\n");
                }
            }
            printf("------------------------\n\n");
        }
        
        // 最终结算
        int final_value = cash + shares_held * price;
        printf("===== 第 %d 局结算 =====\n", round_count);
        printf("最终股价: %d元\n", price);
        printf("剩余持股: %d股 (价值 %d元)\n", shares_held, shares_held * price);
        printf("现金: %d元\n", cash);
        printf("总资产: %d元\n", final_value);
        printf("本局收益: %d元\n\n", final_value - START_CASH);
        
        // 更新现金（自动卖出剩余股票）
        cash = final_value;
        
        // 询问是否继续
        printf("开始下一局？ (Y/N): ");
        scanf(" %c", &play_again);
        play_again = toupper(play_again);
        printf("\n");
        
    } while (play_again == 'Y');
    
    printf("游戏结束！最终资产: %d元\n", cash);
    return 0;
}