#include <stdlib.h> ... arc4random_uniform(100); 0-99的 随机数..do while & while

int isCouple = 0;
int count = 0;
do {
printf("表白...\n");
count++;
if (count == 100) {
isCouple = 1;
}

} while (!isCouple);

printf("=================================\n");

isCouple = 0;
count = 0;
while (!isCouple) {
printf("表白...\n");
count++;
if (count == 100) {
isCouple = 1;
}
}

//    int aa = 0;
//    for (;aa != 99;) {
//        aa = arc4random_uniform(100);
//        printf("%d\n", aa);
//    }