parent
b4867b391f
commit
bf70cfd978
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#include<stdio.h>
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#include<string.h>
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struct student
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{
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char num[10];
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float Math;
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float Physic;
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float English;
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float sum;
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float ave;
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int class;
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int inserted;//sign whether the student is inserted
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char name[10];
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int mod;//sign whether the student is modified
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};
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void menu()// print menu
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{
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for(int i=0;i<30;i++)
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printf(" ");
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printf("1.Input\n");
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for(int i=0;i<30;i++)
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printf(" ");
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printf("2.Output\n");
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for(int i=0;i<30;i++)
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printf(" ");
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printf("3.Order\n");
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for(int i=0;i<30;i++)
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printf(" ");
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printf("4.Quit\n");
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}
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void OSmenu(char x)// operation on menu
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{
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if(x=='i')
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printf("You are trying to Input info\n");
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else if(x=='o')
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printf("You are trying to Output info\n");
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else if(x=='m')
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printf("You are trying to Make things ordered\n");
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else if(x=='q')
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printf("You are about to Quit\n");
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else
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printf("Wrong input\n");
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}
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void inputstudent(struct student *t)//input info without class
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{
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scanf("%s %f %f %f",&(t->num),&(t->Math),&(t->Physic),&(t->English));
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t->sum=t->Math+t->Physic+t->English;
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t->ave=t->sum/3;
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t->inserted=0;
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t->mod=0;
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}
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void inputstudent2(struct student *t)//input info with class
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{
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scanf("%s %d %f %f %f",&(t->num),&(t->class),&(t->Math),&(t->Physic),&(t->English));
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t->sum=t->Math+t->Physic+t->English;
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t->ave=t->sum/3;
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t->inserted=0;
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t->mod=0;
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}
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void inputstudent3(struct student *t)//input info with class name
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{
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scanf("%s %d %s %f %f %f",&(t->num),&(t->class),&(t->name),&(t->Math),&(t->Physic),&(t->English));
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t->sum=t->Math+t->Physic+t->English;
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t->ave=t->sum/3;
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t->inserted=0;
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t->mod=0;
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}
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void insertstudent(struct student *t)//insert student
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{
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scanf("%s %d %f %f %f",&(t->num),&(t->class),&(t->Math),&(t->Physic),&(t->English));
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t->sum=t->Math+t->Physic+t->English;
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t->ave=t->sum/3;
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t->inserted=1;
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}
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void outputstudent1(struct student *t)// output num and grade of all subject
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{
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printf("%s %.1f %.1f %.1f %.1f\n",t->num,t->Math,t->Physic,t->English,t->sum);
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}
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void outputstudent2(struct student *t)// output num,sum and ave
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{
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printf("%s %.1f %.1f\n",t->num,t->sum,t->ave);
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}
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void outputstudent3(struct student *t)// output num,class,whether inserted and grade of all subject
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{
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if(t->inserted==0)
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printf("%s %d %.1f %.1f %.1f\n",t->num,t->class,t->Math,t->Physic,t->English);
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else
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printf("%s %d %.1f %.1f %.1f inserted\n",t->num,t->class,t->Math,t->Physic,t->English);
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}
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void outputstudent4(struct student *t)// output num,class,name,and grade of all subject
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{
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printf("%s %s %d %.1f %.1f %.1f\n",t->num,t->name,t->class,t->Math,t->Physic,t->English);
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}
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void outputstudent5(struct student*t)//output info by class
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{
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for(int i=0;i<3;i++)
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{
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if(i==0||(t+i)->class!=(t+i-1)->class)
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{
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if((t+i)->mod==1)
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printf("%d %s %s %.1f %.1f %.1f modified\n",(t+i)->class,(t+i)->num,(t+i)->name,(t+i)->Math,(t+i)->Physic,(t+i)->English);
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else
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printf("%d %s %s %.1f %.1f %.1f\n",(t+i)->class,(t+i)->num,(t+i)->name,(t+i)->Math,(t+i)->Physic,(t+i)->English);
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}
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else
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{
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if((t+i)->mod==1)
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printf(" %s %s %.1f %.1f %.1f modified\n",(t+i)->num,(t+i)->name,(t+i)->Math,(t+i)->Physic,(t+i)->English);
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else
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printf(" %s %s %.1f %.1f %.1f\n",(t+i)->num,(t+i)->name,(t+i)->Math,(t+i)->Physic,(t+i)->English);
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}
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}
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}
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void orderstudent(struct student *t,int n)//order without class
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{
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for(int i=0;i<n;i++)
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{
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for(int j=i;j<n;j++)
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{
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if((t+i)->sum>(t+j)->sum)
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{
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struct student m;
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m=*(t+i);
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*(t+i)=*(t+j);
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*(t+j)=m;
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}
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}
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}
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}
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void orderstudent2(struct student *t,int n)//order with class
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{
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for(int i=0;i<n;i++)
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{
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for(int j=i;j<n;j++)
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{
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if((t+i)->class>(t+j)->class)
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{
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struct student m;
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m=*(t+i);
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*(t+i)=*(t+j);
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*(t+j)=m;
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}
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}
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}
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for(int i=0;i<n;i++)
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{
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for(int j=i;j<n;j++)
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{
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if((t+i)->class==(t+j)->class&&(t+i)->sum<(t+j)->sum)
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{
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struct student m;
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m=*(t+i);
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*(t+i)=*(t+j);
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*(t+j)=m;
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}
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}
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}
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}
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void removestudent(struct student *t)//remove student(num or name)
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{
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for(int i=0;i<3;i++)
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outputstudent4(t+i);
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char re[10];
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char p;
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scanf("%s",re);
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for(int i=0;i<3;i++)
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{
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if(strcmp((t+i)->num,re)!=0&&strcmp((t+i)->name,re)!=0)
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{
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outputstudent4(t+i);
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}
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}
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printf("Are you sure(yes/no)?\n");
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scanf("%c",&p);
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scanf("%c",&p);
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if(p=='n')
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{
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for(int i=0;i<3;i++)
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outputstudent4(t+i);
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}
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else
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{
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for(int i=0;i<3;i++)
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{
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if(strcmp((t+i)->num,re)==0||strcmp((t+i)->name,re)==0)
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{
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for(int j=i;j<2;j++)
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{
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*(t+j)=*(t+j+1);
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}
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}
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}
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}
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}
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void modstudent(struct student *t)//mod info according to num
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{
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struct student f;
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inputstudent3(&f);
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for(int i=0;i<3;i++)
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{
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if(strcmp((t+i)->num,f.num)==0)
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{
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*(t+i)=f;
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(t+i)->mod=1;
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}
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}
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}
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int main()
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{
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struct student s[10];
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strcpy(s[0].num,"10001");
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strcpy(s[0].name,"Zhang");
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s[0].class=11;
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s[0].Math=99.5;
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s[0].Physic=88.5;
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s[0].English=89.5;
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s[0].sum=s[0].Math+s[0].Physic+s[0].English;
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s[0].inserted=0;
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strcpy(s[1].num,"10002");
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strcpy(s[1].name,"Yang");
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s[1].class=12;
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s[1].Math=77.9;
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s[1].Physic=56.5;
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s[1].English=87.5;
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s[1].sum=s[1].Math+s[1].Physic+s[1].English;
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s[1].inserted=0;
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strcpy(s[2].num,"10003");
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strcpy(s[2].name,"Liang");
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s[2].class=11;
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s[2].Math=92.5;
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s[2].Physic=99.0;
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s[2].English=60.5;
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s[2].sum=s[2].Math+s[2].Physic+s[2].English;
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s[2].inserted=0;
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orderstudent2(&s[0],3);
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modstudent(&s[0]);
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outputstudent5(&s[0]);
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return 0;
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}
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