写一个函数,查找下类字符串中a字符的个数,以及字符串中字符的总个数,并返回给调用者.(不包含'\0'的字符个数)
char str[] = "Wish you a happy Dragon Boat Festival";

写一个函数,查找下类字符串中a字符的个数,以及字符串中字符的总个数,并返回给调用者.(不包含'\0'的字符个数)
char str[] = "Wish you a happy Dragon Boat Festival";