模拟记事本程序（C++实践）


/*输出的类*/

#include <iostream>

using namespace std;
class display{

 public:

  void displayzhumian();

};
 
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/*编辑与保持的类*/

#include <iostream>

using namespace std;
class edit_save{

 public:

  int edit_save_display();

  void edit();

  int save();

  char str[3000];

  char path[50];

};
 
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 /*打开文件与查看的类*/

#include <iostream>

using namespace std;
class openfile_watchfile{

 public:

  int openfile_watch_display();

  int openfile();

  void watchfile();

 private:

  char path2[20];

  char details[3000];   //用于把文件中提取的内容放进该数组中

};
 
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/*复制与粘贴的类*/

#include <iostream>

#include "openfile_watchfile.h"

using namespace std;
class copy_stick:public openfile_watchfile{      //继承了类openfile_watchfile

 public:

  int display();

  void openfile();

 private:

  char a[3000];

  char c[3000];

  char b;

  int i;

  int k;

};
 
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/*查找的类*/

#include <iostream>

#include "copy_stick.h"

using namespace std;
class find:public copy_stick{      //继承了类copy_stick   

 public:

  void Find();

  int display();

};

 
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/*替换的类*/

#include "find.h"
class replace:public find{    //继承了类find

 public:

  int display();

};
 
 
======================================================================================
/*主函数*/

#include "displayclass.h"

#include "edit_save.h"

#include "replace.h"

#include <stdio.h>

#include <iostream>

#include <windows.h>

#include <conio.h>

using namespace std;
int main()

{

 while(1){

  int gongnengxuanze;

  int out=0;

  display a;

  edit_save b;

  openfile_watchfile c;

  copy_stick d;

  find e;

  replace f;

  a.displayzhumian();

  printf("请输入你要使用的功能:");

  cin>>gongnengxuanze;

  switch(gongnengxuanze){

  case 1:b.edit_save_display();break;

  case 2:c.openfile_watch_display();break;

  case 3:d.display();break;

  case 4:e.display();break;

  case 5:f.display();break;

  case 6:out=1;break;

  default:system("CLS");break;

  }

  if(out==1) break;

 }

 return 0;

}
 
======================================================================================
/*主界面的函数*/

#include "displayclass.h"

#include "stdio.h"

void display::displayzhumian()

{

 printf("\n--------------------------  记事本  -------------------------\n\n");

 printf("   1.编辑与保存\n\n");

 printf("   2.打开与查看\n\n");

 printf("   3.复制与粘贴\n\n");

 printf("   4.查找\n\n");

 printf("   5.替换\n\n");

 printf("                                               按ESC退出程序\n");

 printf("------------------------------------------------------------\n");

}
 

======================================================================================
/*编辑与保存的函数*/

#include "edit_save.h"

#include <windows.h>

#include  <fstream>

#include <stdio.h>

#include <string.h>
int edit_save::edit_save_display()

{

 int i,j;

 system("CLS");                          //清屏

 printf("--------------------------  编辑与保存  -------------------------\n");

 printf("\n按“回车”结束操作,请输入：\n");

 printf("-------------------------------------------------------------\n");

 edit_save::edit();

 printf("\n\n\n-------------------------------------------------------------\n");

 printf("文件还没保存，是否要保存，按“1”保存，按“2”退出返回主界面\n");

 printf("--->");

 cin>>i;

 switch(i){

 case 1:j=edit_save::save();break;

 default:system("CLS");return 1;

 }

 if(j==0){

  printf("保存成功\n");

 }

 printf("按“回车”返回主界面");

 getchar();

 getchar();

 system("CLS");

 return 0;

}

void edit_save::edit()

{

 scanf("%s",str);

}

int edit_save::save()

{

 printf("\n请输入你要保存的文件名称，例如“文件.txt”\n");

 printf("--->");

 cin>>path;

 ofstream fout(path);    //先是声明fstream头文件中的ofstream类中的fout函数，再进行调用，输入地址

 if(!fout){

  cout<<"打开文件失败";

  return 1;

 }

 fout<<str<<endl;        //把str字符串的内容输入到该文件中

 //fout.close();           //把文件关闭

 return 0;

}
 
======================================================================================
/*打开与查看的函数*/

#include "openfile_watchfile.h"

#include <stdio.h>

#include <iostream>

#include <fstream>

#include <windows.h>

#include <string.h>

using namespace std;
int openfile_watchfile::openfile_watch_display()

{

 int i,j;

 system("CLS");

 printf("--------------------------  打开与查看  -------------------------\n");

 i=openfile_watchfile::openfile();

 if(i==0){

  printf("\n-------------------------------------------------------------\n");

  printf("打开文件成功\n\n");

 }

 else{

  cout<<"按“回车”返回主界面"<<endl;

  getchar();

  getchar();                           //用于等待用户按一个键，然后返回

  system("CLS");      //清屏

  return 1;

 }

 printf("是否要查看文件内容，按“1”查看，按“2”返回主界面\n");

 printf("--->");

 cin>>j;

 if(j==1){

  openfile_watchfile::watchfile();

 }

 else{

  return 1;

 }

 printf("按“回车”返回主界面\n");

 getchar();

 getchar();                   //用于等待用户按一个键，然后返回

 system("CLS");               //清屏
 return 0;

}

int openfile_watchfile::openfile()

{

 printf("\n请输入你要打开的文件名称，例如“文件.txt”\n");

 printf("--->");

 scanf("%s",path2);

 ifstream fin(path2);                     //调用fstream中，派生类ifstream中的file函数

 if(fin.fail()){                           //如果打开文件失败则，fin.fail()会返回0，否则为返回非0

  cout<<endl<<"打开文件失败"<<endl;

  return 1;

 }

 for(int i=0;!fin.eof();i++){             //fin.eof函数判断是否为文件内容读取结束，结束就返回0,否则非0

  details[i]=fin.get();                      //fin.get函数是读书文件内容

 }

 details[i]='\0';                 

 fin.close();                             //关闭文件                  

 return 0;

}

void openfile_watchfile::watchfile()

{                

 system("CLS");               //清屏

 printf("--------------------------  打开与查看  -------------------------\n");

 Len=strlen(details);

 printf("\n\n文件的内容如下:\n");

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

 for(int i=0;i<Len;i++){

  cout<<details[i];

 }

 cout<<endl;

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

}
 

======================================================================================
/*复制与粘贴的函数*/

#include "copy_stick.h"

#include <stdio.h>

#include <iostream>

#include <windows.h>

#include <string.h>

#include <fstream>

using namespace std;
int copy_stick::display()

{

 int len;

 system("CLS");

 printf("--------------------------  复制与粘贴  -------------------------\n");

 openfile_watchfile::openfile();                                               //引用了公继承的openfile()函数

 len=strlen(details);

 int num1,num2;

 int place;

 printf("\n文件的内容如下:\n");

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

 for(int j=0;j<len;j++){

  cout<<details[j];

 }

 cout<<endl;

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

 printf("\n请选择你要复制的内容\n");

 printf("例如：原文件内容:abcdefgh,需要复制b到f,就输入2-6\n");

 printf("--->");

 cin>>i;

 cin>>b;

 cin>>k;

 for(num1=0,j=i-1;j<k;j++,num1++){

  a[num1]=details[j];

 }

 a[num1]='\0';

 while(1){

  printf("请输入你要粘贴的位置(后面)\n");

  printf("--->");

  cin>>place;

  if(place<=strlen(details)&&place>=0){

   break;

  }

  printf("\n请输入正确的位置!!\n");

 }

 for(num2=0,j=place;j<len;j++,num2++){

  c[num2]=details[j];

  details[j]='\0';

 }

 c[num2]='\0';

 strcat(details,a);

 strcat(details,c);

 ofstream fout(path2);                                                         //储存进记事本里

 fout<<details;

 printf("\n复制粘贴成功，粘贴后的内容如下:\n");

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

 puts(details);

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

 printf("按“回车”返回主界面\n");

 getchar();

 getchar();

 system("CLS");

 return 0;

}
 
======================================================================================
/*查找的函数*/

#include "find.h"

#include <iostream>

#include <stdio.h>

#include <windows.h>

#include <string.h>

using namespace std;
int len;

int find::display()

{

 int i;

 system("CLS");

 printf("--------------------------  查找  -------------------------\n");

 i=openfile_watchfile::openfile();                                          //引用openfile_watch中的openfile函数

 if(i==0) printf("打开文件成功\n");

 else{

  printf("按“回车”返回主界面\n");

  getchar();

  getchar();

  system("CLS");

  return 0;

 }

 len=strlen(details);

 /*printf("\n文件的内容如下:\n");

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

 for(int j=0;j<len;j++){

  cout<<details[j];

 }

 cout<<endl;

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

 find::Find();

 system("CLS");

 return 0;

}

void find::Find()

{

 while(1){

  int u,j,i,place,y,l;

  int changdu;                                       //用来计算str1里面有多少个需要查找的内容

  char str1[3000],*pa,*pb;

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

  printf("请输入要寻找的内容\n");

  printf("--->");

  cin>>str1;

  //p=strstr(details,str1);用不了strstr函数

  changdu=strlen(str1);                       

  pa=details;                                        //使用指针

  pb=str1;

  /*进行查找*/

  for(i=0,u=0,j=0,y=0;i<len;i++){

   if(*(pa+i)==*(pb+y)){

    if(y==0) place=i+1;

    u++;

    y++;

   }

   else{

    u=0;

    y=0;

   }

   if(u==changdu){

    if(j==0){

     printf("出现的位置（第几位): ");

     j++;

    }

    printf("%d ",place);

   }

  }

  cout<<endl;

  if(j==0) printf("\n没有搜索到你要找的内容!!\n");

  printf("\n继续查找请按“1”，按“2”返回主界面\n");

  printf("--->");

  scanf("%d",&l);

  if(l==2) break;

 }

}
 
======================================================================================
/*替换的函数*/

#include "replace.h"

#include <iostream>

#include <stdio.h>

#include <windows.h>

#include <string.h>

#include <fstream>

using namespace std;
int replace::display()

{

 char set1[3000],set2[3000];

 char str2[3000];

 int i;

 int len;

 int a1,a2,a3;

 char a0;

 system("CLS");

 printf("--------------------------  替换  -------------------------\n");

 i=openfile_watchfile::openfile();

 len=strlen(details);

 if(i==0){

  printf("--->>打开文件成功\n\n");

 }

 else{

  cout<<"按“回车”返回主界面"<<endl;

  getchar();

  getchar();                                 //用于等待用户按一个键，然后返回

  system("CLS");              //清屏

  return 1;

 }

 printf("\n文件的内容如下:\n");

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

 for(int j=0;j<len;j++){

  cout<<details[j];

 }

 cout<<endl;

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

 printf("请输入要替换的内容\n");

 printf("--->");

 cin>>str2;

 printf("请输入要替换的位置,例如：原文件内容:abcdefgh,需要复制b到f,就输入2-6\n");

 printf("--->");

 cin>>a1;

 cin>>a0;

 cin>>a2;

 /*替换操作*/

 for(i=0;i<a1-1;i++){

  set1[i]=details[i];

 }

 set1[i]='\0';

 for(i=a2,a3=0;i<len;i++,a3++){

  set2[a3]=details[i];

 }

 set2[a3]='\0';

 strcpy(details,set1);

 strcat(details,str2);

 strcat(details,set2);

 ofstream fout(path2);                           //输出规定的文件

 fout<<details<<endl;             //把内容输出

 fout.close();             //文件关闭

 len=strlen(details);

 printf("\n\n替换后的内容为:\n");

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

  for(j=0;j<len;j++){

  cout<<details[j];

 }

 cout<<endl;

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

 printf("按“回车”返回主界面\n");

 getchar();

 getchar();

 system("CLS");

 return 0;

}

 
 ===============================================================================