cÎļþ×ÖÌåÉèÖà - C/C++ / CÓïÑÔ

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#include<stdio.h>
#include<time.h>
#include<stdlib.h>
#include<conio.h>
main()
{
  int a[30]={-200,-199,-197,-196,-189,-157,-147,-132,-110,-104,-96,-60,-33,
  15,17,70,71,74,110,135,136,178,207,208,228,241,243,256,260,281};
  int b;
  int c;
  int y;
  int x;
  while(1)
  {
  printf("\n\n\t\t\tÖ÷ÄÚƽ°²£¡ ÓÐÒÔÏÂÊ«¸è¹©ÄãÑ¡Ôñ£º\n\n\t\t\t1.±È½Ï¼òµ¥µÄ30Ê×Ê«¸èÖÐÑ¡Ò»Ê×£¬µÃ·Ö5--15
  \n\t\t\t2.Õû±¾Ñ¡±¾Ê«¸èÖÐÑ¡Ò»Ê×£¬µÃ·Ö£º20--40\n\t\t\t
  3.ËùÓÐÑ¡±¾¸½Â¼Ê«¸èÖÐÑ¡Ò»Ê×£¬µÃ·Ö£º10--30");
  x=1;
  printf("\n\n\n\t\t please input a number between 1 to 3 ");
  scanf("%d",&y);
  if(y==1)
  {
  while(x)
  {
  srand((int)time(NULL));
  b=rand()%30;
  printf("\n\n\n\n\n\t\t\t ËùÒª³ªµÄÊ«¸èÊÇ%dÊ×\n\n\n",a[b]);
  srand((int)time(NULL));
  c=rand()%101;
  if(c>=0&&c<=50)
  printf("\n\n\n\n\t\t\t µÃ·Ö£º5·Ö\n\n\n");
  else if(c>50&&c<=90)
  printf("\n\n\n\n\t\t\t µÃ·Ö£º10·Ö\n