C++实现通讯信息管理系统

[b]

#include<iostream>
#include<fstream>
#include<stdlib.h>
#include<cstring>
using namespace std;
void caidan();//菜单函数，实现菜单的显示
static int n=0;    //记录输入的数据的个数
#define limit 10  //通讯信息条数只能是最多为limit条。
class Information
{
public:
struct xinxi
{
int id;          //编号顺序
char name[20];
char num[11];
char type;
char mail[20];
}xx;
void zengInformation();  //增加信息；

int cc(char na[]);         //看输入的名字是不是重复；
};
void Information::zengInformation()
{
cin>>xx.name>>xx.num>>xx.type>>xx.mail;
}
int Information::cc(char na[])
{
if(strcmp(na,xx.name)==0)
return 1;
else return 0;
}
Information B[10];
class PP:public Information    //对信息进行排序，并且写进文件，打开文件；
{
public:
void searchInformation1(char nu[]);//根据电话号码查找联系人；
void searchInformation2(char na[]);//根据姓名查找联系人；
void xiuInformation(char na[]);//修改功能；
void baocun();      //实现保存功能；
void inputfile();  //增加的信息写入文件
void outfile();	    //打开文件，显示信息
void display();     //浏览功能，显示信息；
void shanInformation();    //删除功能；
};
void PP::searchInformation1(char nu[])
{
int i;
if(n==0)
{
cout<<"查无此人"<<endl;
}else
{
for(i=0;i<n;i++)
{
if(strcmp(nu,B[i].xx.num)==0)
{	cout<<B[i].xx.id<<" "<<B[i].xx.name<<" "<<B[i].xx.num<<" "<<B[i].xx.type<<" "<<B[i].xx.mail<<endl;
break;
}
else if(strcmp(nu,B[i].xx.num)!=0 && i==n-1)
{
cout<<"查无此人"<<endl;
break;
}

}

}

}
void PP::searchInformation2(char na[])
{
int i;
if(n==0)
{
cout<<"查无此人"<<endl;
}else
{
for(i=0;i<n;i++)
{
if(strcmp(na,B[i].xx.name)==0)
{	cout<<B[i].xx.id<<" "<<B[i].xx.name<<" "<<B[i].xx.num<<" "<<B[i].xx.type<<" "<<B[i].xx.mail<<endl;
break;
}
else if(strcmp(na,B[i].xx.name)!=0 && i==n-1)
{
cout<<"查无此人"<<endl;
break;
}

}

}

}
void PP::xiuInformation(char na[])
{
if(n==0)
{
cout<<"查无此人"<<endl;
}
else
{
for(int i=0;i<n;i++)
{
if(strcmp(na,B[i].xx.name)==0)
{
int a;
cout<<"输入你要修改哪一项（1.姓名 2.电话号码 3.类型 4.电子邮件）"<<endl;
cin>>a;
switch(a)
{
case 1:cout<<"你要将其修改为:"<<endl;
cin>>B[i].xx.name;break;
case 2:cout<<"你要将其修改为:"<<endl;
cin>>B[i].xx.num;break;
case 3:cout<<"你要将其修改为:"<<endl;
cin>>B[i].xx.type;break;
case 4:cout<<"你要将其修改为:"<<endl;
cin>>B[i].xx.mail;break;
}
break;
}
if((i==n-1 && strcmp(na,B[i].xx.name)!=0))
cout<<"查无此人"<<endl;
}
fstream f1("Information.dat");
ofstream f2("tmp.dat");

for(int i2=0;i2<n;i2++)
{
f2<<B[i2].xx.id<<" "<<B[i2].xx.name<<" "<<B[i2].xx.num<<" "<<B[i2].xx.type<<" "<<B[i2].xx.mail<<endl;
}
f1.close();
f2.close();
remove("Information.dat");
rename("tmp.dat","Information.dat");
}

}

void PP::baocun()
{

ofstream f2("save_Information.dat");
f2.close();
remove("save_Information.dat");
ofstream f3("save_Information.dat");

for(int i=0;i<n;i++)
{
f3<<B[i].xx.id<<" "<<B[i].xx.name<<" "<<B[i].xx.num<<" "<<B[i].xx.type<<" "<<B[i].xx.mail<<endl;
}
f3.close();
}
void PP::inputfile()
{
ofstream outfile("Information.dat");

if(!outfile){
cout << "Unable to open otfile";
exit(1); // terminate with error

}

cout<<"输入联系人信息：姓名、电话号码、类型（A.同事 B.朋友 C.家庭）、电子邮件"<<endl;
for(int i=n;;i++)
{
if(i==limit)
{
cout<<"存储空间已满，可选择删除数据再进行输入"<<endl;
break;
}
B[i].zengInformation();
for(int j=0;j<n;j++)
{
if(B[i].cc(B[j].xx.name))
{
cout<<"数据录入重复"<<endl;
i=i-1;
break;
}
}

n++;

B[i].xx.id=n;
outfile<<B[i].xx.id<<" "<<B[i].xx.name<<" "<<B[i].xx.num<<" "<<B[i].xx.type<<" "<<B[i].xx.mail<<endl;
char q;
cout<<"选择是否继续输入（y/n）"<<endl;
cin>>q;
if(q=='n')
break;
if(q=='y')
continue;

}
outfile.close();
}
void PP::outfile()
{
fstream Myfile("Information.dat");
if(!Myfile)    //判断是否成功打开文件
{
cerr<<"open error!"<<endl;
abort();
}
string temp;
while(getline(Myfile,temp))
{
cout<<temp<<endl;
}
Myfile.close();

}
void PP::display()
{
cout<<"联系人信息如下:"<<endl;
for(int i=0;i<n;i++)
{
cout<<B[i].xx.id<<" "<<B[i].xx.name<<" "<<B[i].xx.num<<" "<<B[i].xx.type<<" "<<B[i].xx.mail<<endl;
}
}
void PP::shanInformation()
{
char na[20];
cout<<"输入你要删除的人的名字"<<endl;
cin>>na;
int j;
for(int i=0;i<n;i++)
{
if(strcmp(na,B[i].xx.name)==0)
{
j=i;
break;
}
}

for(int i1=j;i1<n-1;i1++)
{
B[i1]=B[i1+1];
B[i1].xx.id=i1;
}
n--;
fstream Myfile("Information.dat");
ofstream f2("tmp2.dat");

for(int i3=0;i3<n;i3++)
{
f2<<B[i3].xx.id<<" "<<B[i3].xx.name<<" "<<B[i3].xx.num<<" "<<B[i3].xx.type<<" "<<B[i3].xx.mail<<endl;
}
Myfile.close();
f2.close();
remove("Information.dat");
rename("tmp2.dat","Information.dat");
}
void caidan(PP p)
{
cout<<"****菜单****"<<endl;
cout<<"1.增加功能"<<endl;
cout<<"2.浏览功能"<<endl;
cout<<"3.查询功能"<<endl;
cout<<"4.修改功能"<<endl;
cout<<"5.删除功能"<<endl;
cout<<"6.保存功能"<<endl;
cout<<"7.读取功能"<<endl;
int q;
cout<<"输入你要选择的功能:"<<endl;
cin>>q;
switch(q)
{
case 1:
p.inputfile();
break;
case 2:p.display();break;
case 3:{cout<<"输入你要按号码（h）查找还是按姓名（m）查找:"<<endl;
char z;
cin>>z;
if(z=='h')
{
char h[11];
cout<<"输入你要查找的号码:"<<endl;
cin>>h;
p.searchInformation1(h);
}
if(z=='m')
{
char m[20];
cout<<"输入你要查找的姓名:"<<endl;
cin>>m;
p.searchInformation2(m);
}
break;}
case 4:{
char m[20];
cout<<"输入你要修改的联系人的姓名:"<<endl;
cin>>m;
p.xiuInformation(m);break;
}
case 5:p.shanInformation();break;
case 6:p.baocun();break;
case 7:p.outfile();break;
}
}
int  main()
{
PP P;
char Q;
cout<<"********欢迎使用本系统********"<<endl;
fstream f1("Information.dat");
f1.clear();
f1.close();
for(int i=0;;i++)
{
caidan(P);
cout<<"请问是否(y/n)要继续使用菜单选择功能?"<<endl;
cin>>Q;
if(Q=='y')
continue;
if(Q=='n')
break;
}

return 0;
}