/* 挑出兩數(shù)組中的不同元素 ----Author:zhg_2006.5.20
*/
#define M 5
#define N 6
#include<stdio.h>
void compare(int a[],int b[]);
int zhg_entrance(char mima[],char prompt[]);
void zhg_information(char Date[]);
char Date[]={"2006.5.20"};
void main()
{
  int i,j,fan,a[M],b[N];
  char panduan,mima[]={"87343609"},prompt[]={"dianmi"};
  fan=zhg_entrance(mima,prompt);
  if(fan==0)
    goto over;
  zhg_information(Date);
  printf("\t\t\t       Congratulations !\n");
  xunhuan:  printf("\t\t\t\t\t\t\t    To eixt input 32767.\n\n\n\n\n");
  printf("    Please input %d numbers(%%d<=32767) of a[%d] ,and %d numbers of b[%d]:\n\n\n\t\t\t",M,M,N,N);
  for(i=0;i<M;i++)
  {
    scanf("%d",&a[i]);
    if(a[i]==32767)
      goto over;
    if(i==M-1)
    {
      putchar('\n');
      break;
    }
  }
  for(j=0;j<N;j++)
  {
    scanf("%d",&b[j]);
    if(b[j]==32767)
      goto over;
    if(j==N-1)
      break;
  }
  zhg_information(Date);
  printf("  You've input:\n\n    a[%d]={",M);
  for(i=0;i<M;i++)
  printf("%d,",a[i]);
  printf("\b}\n");
  printf("    b[%d]={",N);
  for(j=0;j<N;j++)
  printf("%d,",b[j]);
  printf("\b}\n\n\n");
  printf("   The different elements are :\n\n");
  compare(a,b);   
  printf("\n\n\n         To CONTINUE press <Ctrl+C>.        To EXIT press anyothers.");
  panduan=getch();
  if(panduan=='\x03')
  {
    zhg_information(Date);
    goto xunhuan;
  }
  else
    goto over;
  over:;
}
void compare(int a[],int b[])    // 此函數(shù)用來分別挑出array1和array2中不同的數(shù)
{
  int i,j,k=1;
  for(i=0;i<M;i++)
  {
    for(j=0;j<N;j++)
    {
      if(a[i]==b[j])
        break;
    }
    if(j==N)
    {
      printf("  (%d):a[%d]=%d  ",k,i,a[i]);  // 原樣輸出“a[]”      
      if(k%3==0)
        putchar('\n');
      k++; 
    }   
    continue;
  }
  for(j=0;j<N;j++)
  {
    for(i=0;i<M;i++)
    {
      if(b[j]==a[i])
        break;
    }
    if(i==M)
    {
      printf("  (%d):b[%d]=%d  ",k,j,b[j]);  // 原樣輸出“b[]”
      if(k%3==0)
        putchar('\n'); 
      k++;
    }   
    continue;
  }
}
#include<stdio.h>
#include<conio.h>
#include<string.h>
#define  Maxtimes  4
int zhg_entrance(char mima[],char prompt[])
{
  char password[21];           // 由此可以更改允許用戶輸入的密碼位數(shù)，實(shí)際密碼位數(shù)應(yīng)當(dāng)在數(shù)組mima[]賦值處更改
  extern char Date[];     // 聲明外部變量
  int i,j; 
  zhg_information(Date);       // 外部變量Date[]已經(jīng)在主調(diào)函數(shù)外賦過值        //  zhg_information有清屏功能
  printf("\n\t\t\t  ");
  printf("Welcom to use this program !\n\n\n");     
  printf("\tYou are given %d times to login at most.\n",Maxtimes);     // 欲更改次數(shù)可在本程序首預(yù)處理命令處進(jìn)行
  printf("\t\t\t\t\t\t     For PROMPT,press <Ctrl+P>.\n");
  printf("\t\t\t\t\t\t     For EXIT,press <Ctrl+E>.\n\n\n\n\n");
  printf("\t   Please input the password:   ");
  shurumima1:  i=0;
  do
  {
    password[i]=getch();
    if(password[i]=='\b')
    {
      putchar('\b');
      i--;
    }
    else
    {
      printf("\a*");
      i++;
    }
  }
  while(password[i-1]!='\r'&&password[i-1]!='\x10'&&password[i-1]!='\x05');
  {
    if(password[i-1]=='\x10')          // <Ctrl+P>鍵
    {
      zhg_information(Date);
      printf("\n\n\n\n\t\t\tPROMPT:%s\n\n\n\n\n\n\t\tContinue :  ",prompt);
      goto shurumima1;
    }  
    if(password[i-1]=='\x05')           //  <Ctrl+E>鍵
      return 0;     // 表示登錄失敗
    {
      password[i-1]='\0';
      if( strcmp(password,mima)==0 )
        return 1;           // 表示登錄成功
    }
  }
  for(j=1;j<Maxtimes;j++)
  {
    zhg_information(Date);
    printf("\n\n\t\t\t\tPassword Error !\n");
    if(Maxtimes-j>1)
      printf("\n\t\t\t\t%d times left !\n",Maxtimes-j);
    else
      printf("\n\t\t\tFor the last time.Be careful !\n");
    printf("\t\t\t\t\t\t     For PROMPT,press <Ctrl+P>.\n");
    printf("\t\t\t\t\t\t     For EXIT,press <Ctrl+E>.\n\n\n\n");
    printf("\tPlease input the password again:   ");
    shurumima2:   i=0;
    do
    {
      password[i]=getch();
      if(password[i]=='\b')
      {
	putchar('\b');
	i--;
      }
      else
      {
	printf("\a*");
	i++;
      }
    }
    while(password[i-1]!='\r'&&password[i-1]!='\x10'&&password[i-1]!='\x05');
    {      
      if(password[i-1]=='\x10')          // <Ctrl+P>鍵
      {
        zhg_information(Date);
	printf("\n\n\n\n\t\t\tPROMPT:%s\n\n\n\n\n\n\t\tContinue :  ",prompt);
        goto shurumima2;
      }
      if(password[i-1]=='\x05')           //  <Ctrl+E>鍵
        return 0;
      {
        password[i-1]='\0';
        if( strcmp(password,mima)==0 )
          return 1; 
      }
      if(j==Maxtimes-1)    // 此條件比以上兩個(gè)的“優(yōu)先級(jí)別”低不能放在其前
      {
        zhg_information(Date);
	printf("\n\n\n\t\t      Sorry,you've tried for %d times.\n\n",Maxtimes);
	printf("\t\t\t  Welcom to use next time !\n\n\n\n\n");
	printf("\t\tPlease press any key to quit.   Thank you !");
        getch();
        return 0;
      }
    } 
  }
  return 1;    // 事實(shí)上程序運(yùn)行不到這里，此處是為了避免編譯的警告
}

#include<stdio.h>
#include<conio.h>
void zhg_information(char Date[])       
{
  int i;
  clrscr();
  printf("\n\t\t\t   All  Rights  Reserved !!!\n");
  printf(" Wuhan University\t\t\t\t\t\t----Author: zhg\n");
  printf(" E-mail: wudazhg@163.com%55s\n",Date);
  for(i=1;i<=80;i++)
    putchar('-');
  putchar('\n');
}