学生籍贯管理

#include

using namespace std;

namespace coun //定义一个命名空间

{

int count=0;

}

struct student

{

char name[50]; //姓名

char no[50]; //学号

char ad[50]; //籍贯

};

struct student stu[500]; //定义结构型数组

class Data

{

public:

void writefile();

void openfile();

void readfile();

};

void Data::readfile() //定义一个无返回值的读取文件的函数{

using namespace coun;

int i;

char str[10];

FILE *fp;

fp=fopen("E:\\message.txt","r");

if(fp==NULL)

return ;

else

{

fscanf(fp,"%d",&count);

if(count!=0)

{

for(i=0;i

{

fscanf(fp,"%s ",str);

fscanf(fp,"%s ",stu[i].name);

fscanf(fp,"%s ",str);

fscanf(fp,"%s ",stu[i].no);

fscanf(fp,"%s ",str);

fscanf(fp,"%s ",stu[i].ad);

}

}

}

fclose(fp);

return ;

}

void Data::openfile()

{

using namespace coun;

char str1[15]={"姓名:"};

char str2[15]={"学号:"};

char str3[15]={"籍贯:"};

int i;

FILE *fp;

fp=fopen("E:\\message.txt","w");

if(fp==NULL)

{

cout<<"打开文件失败!"<

return ;

}

else

{

fprintf(fp,"%d\n",count);

for(i=0;i

{

fprintf(fp,"%s ",str1);

fprintf(fp,"%s ",stu[i].name);

fprintf(fp,"%s ",str2);

fprintf(fp,"%s ",stu[i].no);

fprintf(fp,"%s ",str3);

fprintf(fp,"%s ",stu[i].ad);

}

}

fclose(fp);

return ;

}

//载入信息

void Data::writefile()

{

using namespace coun;

int i;

cout<<"请输入总的学生数: ";

cin>>count;

if(count>500)

{

cout<<"信息太大无法存储! "<

return ;

}

if(count<=0)

{

cout<<"您输入的信息有误，请重新输入! ";

return ;

}

for(i=0;i

{

cout<<"请输入第"<

cout<<"请输入学生的姓名: ";

cin>>stu[i].name;

cout<<"请输入学生的学号: ";

cin>>stu[i].no;

cout<<"请输入学生的籍贯: ";

cin>>stu[i].ad;

cout<

}

openfile();

}

class Seach:public Data //关于查找的类

{

public:

void searchmessage(); //查找的总函数

void searchname(); //根据姓名查找的函数void searchno(); //根据学号查找的函数

void searchad(); //根据籍贯查找的函数};

void Seach::searchname() //根据姓名查找的函数{

using namespace coun;

int i;

char num0[15];

cout<<"请输入你要查询学生的姓名: ";

scanf("%s",num0);

int flag=0;

for(i=0;i

{

if(!strcmp(num0,stu[i].name))

{

flag=-1;

cout<<"姓名: "<

cout<<" 学号: "<