xjgl/8.cpp

#include<stdio.h>
#include<string.h>
int i=0;
struct data
	{
		char num[10];
		char clas[10];
		char name[20];
		float grade1;
		float grade2;
		float grade3;
		float total;
	}; 
	struct data stu[100];
int main()
{
    void menu();
    menu();
 } 
void print(struct data a)
{
	printf("%s %s %s %3.1f %3.1f %3.1f %3.1f",a.num,a.clas,a.name,a.grade1,a.grade2,a.grade3,a.grade1+a.grade2+a.grade3);
}
void menu()
{   
    void input();
    void delet();
    void select();
    void order();
    void output();
	printf("                              1.input\n");
	printf("                              2.delete\n");
	printf("                              3.select\n");
	printf("                              4.order\n");
	printf("                              5.output\n");
	printf("                              6.quit\n");
	printf("please input your option\n");
	int a;
	scanf("%d",&a);
	if(a==1)
	{
		input();
	}
	else if(a==2)
	{
		delet();
	}
	else if(a==3)
	{
		select();
	}
	else if(a==4)
	{
		order();
	}
	else if(a==5)
	{
		output();
	}
	else printf("\n");
	
	
 }
void input()
{
	void menu();
	char a[5];
    printf("Id ");
    scanf("%s",stu[i].num);
    printf("class ");
    scanf("%s",stu[i].clas);
    printf("name ");
    scanf("%s",stu[i].name);
    printf("score1 ");
	scanf("%f",&stu[i].grade1);
	printf("score2 ");
	scanf("%f",&stu[i].grade2);
	printf("score3 ");
	scanf("%f",&stu[i].grade3);
	stu[i].total=stu[i].grade1+stu[i].grade2+stu[i].grade3;
	printf("continue?(yes or no)\n");
	scanf("%s",a);
	if(strcmp(a,"yes")==0)
	{
		i++;
		input();
	}
	else menu();	
 } 
 void delet()
 {
 	void menu();
 	char a[10];
 	char b[10];
 	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫɾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD>ѧ<EFBFBD>Ż<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ");
	scanf("%s",a);
	struct data temp;
	for(int j=0;j<i+1;j++)
	{
		if(strcmp(a,stu[j].num)==0||strcmp(a,stu[j].name)==0)
		{
			stu[j]=stu[i];
			i--;
		}
		if(i==0) break;
	 } 
	printf("continue?(yes or no)\n");
	scanf("%s",b);
	if(strcmp(b,"yes")==0&&i!=0)
	delet();
	else menu();
}
void select()
{
	void menu();
	void print(struct data a);
	char a[10];
	char b[10];
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD>Ż<EFBFBD><EFBFBD>༶ ");
	scanf("%s",a);
	for(int j=0;j<i+1;j++)
	{
		if(strcmp(stu[j].num,a)==0||strcmp(stu[j].clas,a)==0)
		print(stu[j]);
        printf("\n");
	 } 
	printf("continue?(yes or no)\n");
	scanf("%s",b);
    if(strcmp(b,"yes")==0&&i!=0)
    select();
    else menu();
	
}
void order()
{
	struct data temp;
	void menu();
    for(int j=0;j<i+1;j++)
    {
    	for(int p=j+1;p<i+1;p++)
    	{
    		if(strcmp(stu[j].clas,stu[p].clas)>0)
    		{
    			temp=stu[j];
    			stu[j]=stu[p];
    			stu[p]=temp;
			}
		}
	}
	for(int j=0;j<i+1;j++)
	{
		for(int p=j+1;p<i+1;p++)
		{
			if(stu[j].total<stu[p].total&&strcmp(stu[j].clas,stu[p].clas)==0)
			{
				temp=stu[j];
    			stu[j]=stu[p];
    			stu[p]=temp;
			}
		}
	}
	for(int j=0;j<i+1;j++)
	{
		print(stu[j]);
		printf("\n");
	}
	menu();
}
void output()
{
	void print(struct data a);
	void menu();
	for(int j=0;j<i+1;j++)
	{
		print(stu[j]);
		printf("\n");
	}
	menu();
}