scanf_s("%s%d%d%f",pBoy->name,&pBoy->num,&pBoy->age,&pBoy->score);//num前少了个&
for(size_t i=0;i<3;i++) { scanf_s("%s %d %d %f",pBoys->name,16,&pBoys->num,&pBoys->age,&pBoys->score); pBoys++; //假设字符串name长度为16 }