#include #include #include #include int main(){\x05//S:黑桃 H:红心 C:草花 D:方块\x05char suits[] = {'S','H','C','D'};\x05//等级\x05char ranks[] = {'2','3','4','5','6','7',\x05\x05\x05\x05\x05\x05'8','9','t','J','Q','K','A'};\x05int n;//产
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![#include #include #include #include int main(){\x05//S:黑桃 H:红心 C:草花 D:方块\x05char suits[] = {'S','H','C','D'};\x05//等级\x05char ranks[] = {'2','3','4','5','6','7',\x05\x05\x05\x05\x05\x05'8','9','t','J','Q','K','A'};\x05int n;//产](/uploads/image/z/10326652-52-2.jpg?t=%23include+%23include+%23include+%23include+int+main%28%29%7B%5Cx05%2F%2FS%3A%E9%BB%91%E6%A1%83+H%3A%E7%BA%A2%E5%BF%83+C%3A%E8%8D%89%E8%8A%B1+D%3A%E6%96%B9%E5%9D%97%5Cx05char+suits%5B%5D+%3D+%7B%27S%27%2C%27H%27%2C%27C%27%2C%27D%27%7D%3B%5Cx05%2F%2F%E7%AD%89%E7%BA%A7%5Cx05char+ranks%5B%5D+%3D+%7B%272%27%2C%273%27%2C%274%27%2C%275%27%2C%276%27%2C%277%27%2C%5Cx05%5Cx05%5Cx05%5Cx05%5Cx05%5Cx05%278%27%2C%279%27%2C%27t%27%2C%27J%27%2C%27Q%27%2C%27K%27%2C%27A%27%7D%3B%5Cx05int+n%3B%2F%2F%E4%BA%A7)
#include #include #include #include int main(){\x05//S:黑桃 H:红心 C:草花 D:方块\x05char suits[] = {'S','H','C','D'};\x05//等级\x05char ranks[] = {'2','3','4','5','6','7',\x05\x05\x05\x05\x05\x05'8','9','t','J','Q','K','A'};\x05int n;//产
#include
#include
#include
#include
int main()
{
\x05//S:黑桃 H:红心 C:草花 D:方块
\x05char suits[] = {'S','H','C','D'};
\x05//等级
\x05char ranks[] = {'2','3','4','5','6','7',
\x05\x05\x05\x05\x05\x05'8','9','t','J','Q','K','A'};
\x05int n;//产生几张牌
\x05printf("你要必张牌:");
\x05scanf("%d",&n);
\x05srand(time(NULL));//这条指令什么意思?
\x05bool f[4][13] = {false};
\x05int i;
\x05for(i=0; i
#include #include #include #include int main(){\x05//S:黑桃 H:红心 C:草花 D:方块\x05char suits[] = {'S','H','C','D'};\x05//等级\x05char ranks[] = {'2','3','4','5','6','7',\x05\x05\x05\x05\x05\x05'8','9','t','J','Q','K','A'};\x05int n;//产
srand
srand函数是随机数发生器的初始化函数.
原型:void srand(unsigned seed);
用法:它需要提供一个种子,这个种子会对应一个随机数,如果使用相同的种子后面的rand()函数会出现一样的随机数.如: srand(1); 直接使用1来初始化种子.不过为了防止随机数每次重复常常使用系统时间来初始化,即使用 time函数来获得系统时间,它的返回值为从 00:00:00 GMT, January 1, 1970 到现在所持续的秒数,然后将time_t型数据转化为(unsigned)型再传给srand函数,即: srand((unsigned) time(&t)); 还有一个经常用法,不需要定义time_t型t变量,即: srand((unsigned) time(NULL)); 直接传入一个空指针,因为你的程序中往往并不需要经过参数获得的t数据.srand((int)getpid()); 使用程序的ID(getpid())来作为初始化种子,在同一个程序中这个种子是固定的.