各位博友們，大家好，今天給大家打一個代碼雨
接下來是代碼

#include <stdio.h> #include <time.h> #include <Windows.h> #include <graphics.h>#define WIDTH 960 #define HEIGHT 640 #define STR_SIZE 20 #define STR_NUM 128 #define STR_WIDTH 15typedef struct Rain {int x;int y;int speed;TCHAR str[STR_SIZE]; }Rain; Rain rain[STR_NUM];// 隨機生成一個字符 char CreateCh() {char ch = 0;int flag = rand() % 3; // 0~2if (flag == 0)ch = rand() % 26 + 'a'; // 產生小寫字母a~zelse if (flag == 1)ch = rand() % 26 + 'A'; // 產生大寫字母A~Zelsech = rand() % 10 + '0'; // 產生數字0~9return ch; } // 初始化結構體成員 void InitRain() {// 初始化字符的位置和速度for (int i = 0; i < STR_NUM; ++i){rain[i].x = i*STR_WIDTH;rain[i].y = rand() % HEIGHT;rain[i].speed = rand() % 5 + 5;}// 獲取隨機字符填充進數組for (int i = 0; i < STR_NUM; i++){for (int j = 0; j < STR_SIZE; j++){rain[i].str[j] = CreateCh();}} } // 輸出到窗口中 void DrawRain() {cleardevice();for (int i = 0; i < STR_NUM; i++){for (int j = 0; j < STR_SIZE; j++){outtextxy(rain[i].x, rain[i].y-STR_WIDTH*j, rain[i].str[j]);settextcolor(RGB(0, 255-j*13, 0));}} } // 移動字符 void MoveRain() {for (int i = 0; i < STR_NUM; i++){rain[i].y += rain[i].speed;if (rain[i].y- STR_WIDTH*STR_SIZE > HEIGHT){rain[i].y = 0;}} } // 隨機改變字符 void ChangeCh() {for (int i = 0; i < STR_NUM; i++){rain[rand() % STR_NUM].str[rand() % STR_SIZE] = CreateCh();} } int main() {srand((unsigned int)time(NULL)); // 初始化隨機數種子initgraph(WIDTH, HEIGHT);InitRain();DWORD t1, t2;t1 = GetTickCount();t2 = t1;while (1){BeginBatchDraw(); // 雙緩沖機制DrawRain();ChangeCh();if (t2 - t1 > 20){MoveRain();t1 = t2;}t2 = GetTickCount();EndBatchDraw();}getchar();closegraph();return 0; }

下面是效果圖

好了，今天就分享到這里，再見！

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