#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <map>
#include <utility>
using namespace std
class Telephone
void FileStore(const Telephone &t, const string &filename)
class Telephone
{
public:
Telephone() {}
~Telephone() {}
//通过名字查找
bool Find(const string &name)
//通过首字母查找
bool Find_first(const char ch)
//删除一个元素
void Erase(const string &name)
//增加一个元素
void Add(const string &name, const string &num)
//修改为
void Modify(const string &name, const string &num)
//显示电话簿的内容
void Show(void)
//保存内容到map对象
ifstream &Store(ifstream &infile)
//得到找到的元素
string GetFN(void) const { return m_findnum}
//得到找到的集合
map<string, string>&GetSet(void)
//删除集合的所有元素
void ClearSet()
friend void FileStore(const Telephone &t, const string &filename)
private:
map<string, string>m_tele
map<string, string>m_vp
string m_findnum
}
//------------------------------------------------------------
bool Telephone::Find(const string &name)
{
map<string, string>::iterator it = m_tele.find(name)
if (it != m_tele.end())
{
m_findnum = it->second
return true
}
else
{
return false
}
}
//--------------------------------------------------------------
bool Telephone::Find_first(const char ch)
{
map<string, string>::iterator mit = m_tele.begin()
for (mit != m_tele.end()++mit)
{
string::size_type pos = (mit->first).find(ch)
if (pos == 0)
{
m_vp.insert(make_pair(mit->first, mit->second))
}
}
if (m_vp.empty())
{
return false
}
else
{
return true
}
}
//--------------------------------------------------------------
map<string, string>
&Telephone::GetSet(void)
{
return m_vp
}
//--------------------------------------------------------------
void Telephone::ClearSet(void)
{
m_vp.clear()
}
//--------------------------------------------------------------
void Telephone::Erase(const string &name)
{
m_tele.erase(name)
}
//--------------------------------------------------------------
void Telephone::Add(const string &name, const string &num)
{
m_tele.insert(make_pair(name, num))
}
//--------------------------------------------------------------
void Telephone::Modify(const string &name, const string &num)
{
Erase(name)
Add(name, num)
}
//---------------------------------------------------------------
void Telephone::Show(void)
{
map<string, string>::const_iterator map_it = m_tele.begin()
while (map_it != m_tele.end())
{
cout <<map_it->first <<" "
<<map_it->second <<endl
++map_it
}
}
//------------------------------------------------------------------
ifstream &Telephone::Store(ifstream &infile)
{
string name
string num
while (infile >>name >>num)
{
Add(name, num)
}
return infile
}
//-------------------------------------------------------------------
void FileStore(const Telephone &t, const string &filename)
{
ofstream outfile(filename.c_str())
map<string, string>::const_iterator it = t.m_tele.begin()
while (it != t.m_tele.end())
{
outfile <<it->first <<" " <<it->second <<endl
++it
}
outfile.close()
}
//---------------------------------------------------------------------
ifstream &open_file(ifstream &in, const string &file)
{
in.close()
in.clear()
in.open(file.c_str())
return in
}
//----------------------------------------------------------------------
ofstream &open_file(ofstream &out, const string &file)
{
out.close()
out.clear()
out.open(file.c_str())
return out
}
//----------------------------------------------------------------------
int main(void)
{
Telephone tp
ifstream infile
ofstream outfile
cout <<"输入文件名: "
string filename
cin >>filename
open_file(infile, filename.c_str())
tp.Store(infile)
infile.close()
infile.clear()
while (true)
{
cout <<"选择 *** 作： " <<endl
cout <<"1 --- 查找 "
<<"2 --- 删除 "
<<"3 --- 增加 "
<<"4 --- 修改 "
<<"5 --- 显示 "
<<"6 --- 退出 "
<<endl
char ch
cin >>ch
string name
string num
switch (ch)
{
case '1':
{
cout <<"全名查找 -- a / 首字母查找 -- f" <<endl
char c
cin >>c
if ((c == 'a') || (c == 'A'))
{
cout <<"输入查找的名字: "
cin >>name
if (tp.Find(name))
{
cout <<"找到匹配!" <<endl
cout <<tp.GetFN() <<endl
}
else
{
cout <<"没有找到匹配!" <<endl
}
}
else if ((c == 'f') || (c == 'F'))
{
cout <<"输入首字母: "
char cf
cin >>cf
if (tp.Find_first(cf))
{
cout <<"找到集合!" <<endl
map<string, string>vmp = tp.GetSet()
map<string, string>::iterator vmi = vmp.begin()
for (vmi != vmp.end()++vmi)
{
cout <<vmi->first <<" "
<<vmi->second
<<endl
}
}
else
{
cout <<"没有找到!" <<endl
}
tp.ClearSet()
}
else
{
cout <<"输入错误!" <<endl
}
break
}
case '2':
cout <<"输入要删除的名字: "
cin >>name
tp.Erase(name)
break
case '3':
cout <<"输入要增加的名字和号码:(以exit单词结束)" <<endl
while (true)
{
cin >>name >>num
if ((name == "exit") || (num == "exit"))
break
tp.Add(name, num)
}
break
case '4':
cout <<"输入要修改的名字和号码: "
cin >>name >>num
tp.Modify(name, num)
break
case '5':
cout <<"电话簿内容: " <<endl
tp.Show()
break
default:
break
}
FileStore(tp, filename.c_str())
if ((ch <'1') || (ch >'5'))
break
}
return (0)
}
#include "stdafx.h"#include<iostream.h>
#include<string.h>
#include<iomanip.h>
class stu
{
char name[20]
double age,homephone,telphone
char sex
public:
stu(){}
stu(char n[20],char se,double ag,double ho,double te)
{
strcpy(name, n)
age=ag
homephone=ho
telphone=te
}
friend void main()
}
void main()
{
cout<<"请选择您需要的 *** 作！"<<endl
cout<<" *** 作："<<endl
cout<<"(0)通讯录录入"<<endl
cout<<"(1)增加人员"<<endl
cout<<"(2)删除人员"<<endl
cout<<"(3)修改数据"<<endl
cout<<"(4)显示记录"<<endl
cout<<"(5)退出"<<endl
cout<<"选择相关 *** 作请输入相对的括号里的阿拉伯数字！"<<endl
stu *s[50]
int i=0
int j=0
bool flag2=0
char p
do
{
cin>>p
if((p>='0'&&p<='5'))
flag2=1
else
cout<<"指令错误！请重新输入："<<endl
}while(flag2==0)
switch(p)
{
case '0': //(0)通讯录录入
{
char name[20]
double age,homephone,telphone
char sex,c
do{
cout<<"请输入姓名："<<endl
cin>>name
cout<<"请输入性别："<<endl
cin>>sex
cout<<"请输入年龄："<<endl
cin>>age
cout<<"请输入家里的电话号码："<<endl
cin>>homephone
cout<<"请输入移动电话号码："<<endl
cin>>telphone
j++
s[i]=new stu(name, sex, age, homephone , telphone)
i++
cout<<"数据录入成功，想继续录入吗(y/n)"<<endl
cin>>c
flag2=0
do
{
if(c!='y'&&c!='n')
{
cout<<"指令错误！请重新输入！"<<endl
cin>>c
}
else
flag2=1
}while(flag2==0)
}while(c=='y')
break}
////////////////////////////////////////////////////////////////////
case '1': //(1)增加人员(Add)
{
char name[20]
double age,homephone,telphone
char sex,c
do{
cout<<"请输入姓名："<<endl
cin>>name
cout<<"请输入性别："<<endl
cin>>sex
cout<<"请输入年龄："<<endl
cin>>age
cout<<"请输入家里的电话号码："<<endl
cin>>homephone
cout<<"请输入移动电话号码："<<endl
cin>>telphone
j++
s[i]=new stu(name, sex, age, homephone , telphone)
i++
cout<<"数据录入成功，想继续录入吗(y/n)"<<endl
cin>>c
flag2=0
do
{
if(c!='y'&&c!='n')
{
cout<<"指令错误！请重新输入！"<<endl
cin>>c
}
else
flag2=1
}while(flag2==0)
}while(c=='y')
break}
case '2': //(2)删除人员(Delete)
{
char name[20]bool flag3=0char c
do{
cout<<"请输入您要删除的学生姓名："<<endl
cin>>name
for(int h=0h<ih++)
{
if(strcmp(name,s[h]->name)==0)
{
flag3=1
i--
do{
s[h]=s[h+1]
h++
}while(h<=i)
}
}
if(flag3==0)
cout<<"您要求删除的对象本来就不存在！请检查输入的正确性！"
cout<<"要继续删除吗？(y/n)"<<endl
cin>>c
if(c!='y'&&c!='n')
{
cout<<"指令错误！请重新输入！"<<endl
cin>>c
}
}while(c=='y')
break}
case '3': //(3)修改数据(Alter)
{
char name[20],sedouble ag,ho,teflag2=0
char c
do
{
cout<<"请输入您要修改的学生的姓名："<<endl
cin>>name
for(int h=0h<ih++)
{
if(strcmp(name,s[h]->name)==0)
{
flag2=1
cout<<"请输入性别："<<endl
cin>>se
cout<<"请输入年龄："<<endl
cin>>ag
cout<<"请输入家里的电话号码："<<endl
cin>>ho
cout<<"请输入移动电话号码："<<endl
cin>>te
s[h]->sex=se
s[h]->age=ag
s[h]->homephone=ho
s[h]->telphone=te
cout<<"数据修改成功！"
}
}
if(flag2==0)
{
cout<<"您要修改的学生本来就不存在！请检查重新输入！"<<endl
}
cout<<"想继续修改吗(y/n)"<<endl
cin>>c
if(c!='y'&&c!='n')
{
cout<<"指令错误！请重新输入！"<<endl
cin>>c
}
}while(c=='y')
break}
case '4': //(4)显示记录(List)
{
cout<<"本系统所有通讯录的数据如下："<<endl
if(i==0)
cout<<"管理系统中没有录入数据或者数据已经被删除！"<<endl
for(int k=0k<ik++)
{
cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<<
"性别："<<" "<<s[k]->sex<<"年龄："<<" "<<s[k]->age
<<"家里的电话号码："<<" "<<s[k]->homephone<<"移动电话号码："
<<" "<<s[k]->telphone<<endl
}
break} }
cout<<"您想继续进行其他 *** 作吗?(y/n)"<<endl
bool flag4=0
do
{
cin>>p
if(p!='y'&&p!='n')
cout<<"指令错误！请重新输入！"<<endl
else
flag4=1
}while(flag4==0)
if(p=='y')
cout<<"请输入 *** 作代码(0 通讯录录入\n1 增加人员(Add)\n2 删除人员(Delete)\n3 修改数据(Alter)\n4 显示记录(List)\n 5 退出(Exit))"<<endl
cin>>p
for(int x=0x<ix++)
{
delete s[x]
cout<<"删除所有成员!"<<endl
}
}
你好, 你是想实现一个具有查询功能的不带数据库的小程序吧？这样给你写有点不可能：里面难点给你写出来思路
1.这里用text记事本代替数据库实现这个功能（程序打开可能会有2s加载时间）
2.使用open函数 打开并且写入数据；建议人名+电话号；
3.每次打开时候加载text 也是可以用open
4.获取到open的数据 并用split（string,""）分开，再通过 +
分开人名和电话 得到一个2维数组
5.遍历这个数组 和你要查询人名做出匹配
ok
祝楼主好运
欢迎分享，转载请注明来源：内存溢出
微信扫一扫
支付宝扫一扫
评论列表（0条）