c/c++实现电话通讯录管理

实现对通讯录的添加，删除，查询，全部输出以及存储的功能，使用vector简化操作

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

typedef struct {
	string name;
	string sex;
	string tel;
	string email;
	string address;

} PEOPLE;
PEOPLE p[100];
int main() {
	vector<PEOPLE> vec;
	int a,n,b,i,flag;
	string m;
	char q;

	FILE *fp=fopen("tel.txt","rw");//打开原来的通讯录并且读入

	cout <<"*****************欢迎来到通讯录*****************"<<endl;
	cout <<"                    选择操作               "<<endl;
	cout <<"1.添加 2.查询 3.删除 4.全部输出 5.保存此次所有操作"<<endl;
	i=0;
	char name[100],sex[10],tel[100],email[100],address[100];
	while(fscanf(fp,"%s %s %s %s %s",name ,sex ,tel ,email ,address )!=EOF) {
		p[i].name =name;
		p[i].sex =sex;
		p[i].tel =tel;
		p[i].email =email;
		p[i].address =address;
		vec.push_back(p[i]);//直接用p[i]读入会产生问题，所以借助char作为中间容器
		i++;
	};

	cin >>a;
	q='Y';
	while(q=='Y') {
		if(a==1) {
			cout << "输入添加的人数："<< endl;
			cin >>n;
			b = vec.size();
			cout << b<<endl;
			for(i=0; i<n; i++) {
				cout << "输入姓名、性别、电话、邮箱、家庭住址"<<endl;
				cin >> p[i].name>>p[i].sex>>p[i].tel>>p[i].email>>p[i].address;
				vec.push_back(p[i]);
			}
			cout << vec.size();
		}
		if(a==2) {
			cout << "输入姓名："<< endl;
			cin  >> m;
			for(i=0; i<vec.size(); i++) {
				flag=1;
				if(vec[i].name==m) {
					flag=0;
					cout << vec[i].name << " "<< vec[i].sex << " "<< vec[i].tel << " "<< vec[i].email << " "<< vec[i].address <<endl;
				}
			}
			if(flag==1) {
				cout << "该用户不存在" <<endl;
			}
		}
		if(a==3) {
			cout << "输入姓名："<< endl;
			cin  >> m;
			for(vector<PEOPLE>::iterator Iter=vec.begin(); Iter!=vec.end();) {
				flag=1;
				if(Iter->name==m) {
					flag=0;
					Iter=vec.erase(Iter);//结构体正确删除操作
					cout << "删除成功"<<endl;
					break;
				} else {
					Iter++;
				}
			}
			if(flag==1) {
				cout << "该用户不存在" <<endl;

			}
		}
		if(a==4) {
			b=vec.size();
			for(i=0; i<b; i++) {
				cout << vec[i].name << " "<< vec[i].sex << " "<< vec[i].tel << " "<< vec[i].email << " "<< vec[i].address <<endl;
			}
		}
		if(a==5) {
			fclose(fp);
			b=vec.size();
			freopen("tel.txt","w",stdout);
			for(i=0; i<b; i++) {
				cout << vec[i].name << " "<< vec[i].sex << " "<< vec[i].tel << " "<< vec[i].email << " "<< vec[i].address <<endl;
			}
			return 0;

		}
		cout << "是否继续进行其他操作？请输入Y或N"<< endl;
		cin >> q;
		if(q=='Y') {
			cout << "选择操作："<< endl;
			cin >> a;
		}
	}

	return 0;


}