tongxunlu.cpp

创建通讯录,添加内容后,可以按姓名和编号查询,也可以按姓名和编号删除

#include<iostream>
#include <string>
using namespace std;

const int MAXMUM = 100;

struct Messages
{
	string name[MAXMUM];
	string sex[MAXMUM];
 	string tel[MAXMUM];
    string add[MAXMUM];
}list;
int back;

void main()
{
	int t;
	while(t!=0)
 	{
		cout<<"1：建立通讯录"<<endl;
		cout<<"2：插入通讯录"<<endl;
		cout<<"3：通讯录进行查询"<<endl;
		cout<<"4：通讯录删除"<<endl;
		cout<<"5：输出通讯录"<<endl;
		cout<<"6：退出管理系统"<<endl;
		cout<<"请输入您要选择的选项号：";
		int num;
		cin>>num;

		if(num != 1 && back == 0 && num != 6)
		{
			cout<<"您还尚未建立一个通讯录！"<<endl<<endl;
			continue;
			//continue用于循环体中，终止当前一次循环，不执行continue的后续语句转向循环入口继续执行
		}
		if(num == 1)
		{
			back = 1;
			cout<<"您已经建立了一个新的通讯录！"<<endl<<endl;
		}
		if(num == 2)
		{
			cout<<"请输入姓名：";
			cin>>list.name[back];
			cout<<"请输入性别：";
			cin>>list.sex[back];
			cout<<"请输入电话：";
			cin>>list.tel[back];
			cout<<"请输入地址：";
			cin>>list.add[back];
			back++;
			cout<<"插入信息成功！"<<endl<<endl;
		}
		if(num == 3)
		{
			int flag;
			cout<<"按姓名查找请输入1"<<endl;
			cout<<"按编号查找请输入2："<<endl;
			cin>>flag;
			if(flag == 1)
			{
				cout<<"请输入您要查询的姓名：";
				string str;
				cin>>str;
				for(int i = 1; i < back; i++)
				{	if(list.name[i] == str)
    				{
    					cout<<i<<" "<<list.name[i]<<" "<<list.sex[i]<<" "
    						<<list.tel[i]<<" "<<list.add[i]<<endl;
  					}
   					else cout<<"没有您要找的姓名！"<<endl<<endl;
				}
    		}
  			if(flag == 2)
  			{
				cout<<"请输入您要查询的编号：";
    			int i;
				cin>>i;
				if(i < 1 || i >= back)
				{
					cout<<"没有您要找的编号！"<<endl<<endl;
				}
				else cout<<i<<" "<<list.name[i]<<" "<<list.sex[i]<<" "<<list.tel[i]<<" "<<list.add[i]<<endl<<endl;
			}
		}
  		if(num == 4)
  		{
  			int flag;
  			cout<<"按姓名删除请输入1，按编号删除请输入2：";
  			cin>>flag;
  			if(flag == 1)
     		{
				cout<<"请输入您要删除的姓名：";
				string str;
				cin>>str;
				for(int i = 1; i < back; i++)
    				if(list.name[i] == str)
    				{
         				for(int j = i; j < back-1; j++)
         				{
         					list.name[j] = list.name[j+1];
         					list.sex[j] = list.sex[j+1];
         					list.tel[j] = list.tel[j+1];
         					list.add[j] = list.add[j+1];
 						}
 						back--;
						i--;
						cout<<"删除操作成功！"<<endl<<endl;
  					}
   				else	cout<<"没有您要删除的姓名！"<<endl<<endl;
			}
			if(flag == 2)
			{
				cout<<"请输入您要删除的编号：";
    			int i;
				cin>>i;
				if(i < 1 || i >= back)
				{
					cout<<"没有您要删除的编号！"<<endl<<endl;
				}
				else		
				for(int j = i; j < back-1; j++)
				{
     				list.name[j] = list.name[j+1];
       				list.sex[j] = list.sex[j+1];
       				list.tel[j] = list.tel[j+1];
       				list.add[j] = list.add[j+1];
   				}
   				back--;
				cout<<"删除操作成功！"<<endl<<endl;
			}
  		}
  		if(num == 5)
  		{
  			for(int i = 1; i < back; i++)
  				cout<<i<<" "<<list.name[i]<<" "<<list.sex[i]<<" "<<list.tel[i]<<" "<<list.add[i]<<endl;
   			if(back == 1)
   				cout<<"当前通讯录没有任何内容！"<<endl<<endl;
   			if(back > 1)
   				cout<<endl;
    	}
     	if(num == 6)
     		break;
		cout<<"退出按0  1继续"<<endl;
		cin>>t;
	}
}