c語言大作業(yè)-學生成績管理系統(tǒng)v5.0

//成績管理系統(tǒng)v1.0#include<stdio.h>#include<stdlib.h>#include<string.h>#defineN30#defineM6typedefstructstudent{longstudentID;charstudentName[10];intscore[M];}STU;voidInput(STUstu[],intn,intm);voidTotalave(STUstu[],intn,intm);voidevestuTotalave(STUstu[],intn,intm);voidScoredes(STUstu[],intn,intm);voidScoreas(STUstu[],intn,intm);voidNumas(STUstu[],intn,intm);voidDicas(STUstu[],intn,intm);voidSearchbynum(STUstu[],intn,intx,intm);voidSearchbymane(STUstu[],intn,charname[],intm);voidstatistis(STUstu[],intn,intm);voidList(STUstu[],intn,intm);intmain(){intn,c,x,m;charname[10];STUstu[N];printf("輸入學生人數(shù)");scanf("%d",&n);printf("輸入考試科目");scanf("%d",&m);printf("1.Inputrecord\n");printf("2.Caculatetotelandaveragescoreofeverycourse\n");printf("3.Caculatetotelandaveragescoreofeverystudent\n");printf("4.Sortindescendingorderbytotalscoreofeverystudent\n");printf("5.Sortinascendingorderbytotalscoreofeverystudent\n");printf("6.Sortinascendingorderbynumber\n");printf("7.Sortinascendingorderbyname");printf("8.Searchbynumber\n");printf("9.Searchbyname\n");printf("10.Statisticanalysisforeverycourse\n");printf("11.Listrecord\n");printf("0.Exit\n");printf("Pleaseenteryourchoice:\n");printf("\n");for(;;){scanf("%d",&c);switch(c){case1://錄入學生學號和各科成績Input(stu,n,m);printf("Pleaseenteryourchoice:\n");break;case2://計算每門課程的總分和平均分Totalave(stu,n,m);printf("Pleaseenteryourchoice:\n");break;case3://計算每個學生的總分和平均分evestuTotalave(stu,n,m);break;case4://按每個學生的總分由高到低排出名次表Scoredes(stu,n,m);printf("Pleaseenteryourchoice:\n");break;case5://按每個學生的總分由低到高排出名次表Scoreas(stu,n,m);printf("Pleaseenteryourchoice:\n");break;case6://按學號由小到大排出名次表Numas(stu,n,m);printf("Pleaseenteryourchoice:\n");break;case7://按姓名的字典順序排出成績表Dicas(stu,n,m);printf("Pleaseenteryourchoice:\n");break;case8://按學號查詢學生排名及其各科成績printf("請輸入查找學號\n");scanf("%d",&x);Searchbynum(stu,n,x,m);printf("Pleaseenteryourchoice:\n");break;case9://按姓名查詢學生排名及其各科成績printf("請輸入查找姓名\n");scanf("%s",name);getchar();}}for(i=0;i<n;i++)printf("ID:%10ld,name:%s,score:%d\n",stu[i].studentID,stu[i].studentName,sum[i]);//以長整形打印用%ld}voidScoreas(STUstu[],intn,intm)//5.按每個學生的總分由di到gao排出名次表{inti,j,k,h,sum[N];STUt;for(i=0;i<n;i++){sum[i]=0;for(j=0;j<m;j++){sum[i]=sum[i]+stu[i].score[j];}}for(i=0;i<n;i++){k=i;for(j=i+1;j<n;j++){if(sum[j]<sum[k])k=j;}if(i!=k){t=stu[i],h=sum[i];stu[i]=stu[k],sum[i]=sum[k];stu[k]=t,sum[k]=h;}}for(i=0;i<n;i++)printf("ID:%10ld,name:%s,score:%d\n",stu[i].studentID,stu[i].studentName,sum[i]);//以長整形打印用%ld}voidNumas(STUstu[],intn,intm)//6.按學號由小到大排出名次表{inti,j,k;STUt;for(i=0;i<n;i++){k=i;for(j=i+1;j<n;j++){if(stu[j].studentID<stu[k].studentID)k=j;}if(i!=k)t=stu[k],stu[k]=stu[i],stu[i]=t;}for(i=0;i<n;i++){printf("ID:%10ld,name:%s\n",stu[i].studentID,stu[i].studentName);//以長整形打印用%ldfor(j=0;j<m;j++)printf("project%dscore:%d\n",j+1,stu[i].score[j]);}}voidDicas(STUstu[],intn,intm)//7.{inti,j;STUt;for(i=0;i<n;i++){for(j=i+1;j<n;j++){if(strcmp(stu[i].studentName,stu[j].studentName)>0)t=stu[i],stu[i]=stu[j],stu[j]=t;}}for(i=0;i<n;i++){printf("ID:%10ld,name:%s\n",stu[i].studentID,stu[i].studentName);for(j=0;j<m;j++)printf("project:%d,score:%d\n",j+1,stu[i].score[j]);}}voidSearchbynum(STUstu[],intn,intx,intm)//8.按學號查詢學生排名及其各科成績{inti,j,c=1,find=0,sum[N];for(i=0;i<n;i++){sum[i]=0;for(j=0;j<m;j++)sum[i]=sum[i]+stu[i].score[j];}for(i=0;i<n;i++){if(stu[i].studentID==x){find=1;break;}}if(find==0)printf("notfind\n");else{for(j=0;j<n;j++){if(sum[j]>sum[i])c++;}printf("ID:%10ldname:%s\n",stu[i].studentID,stu[i].studentName);//以長整形打印用%ldfor(j=0;j<m;j++)printf("project%dscore:%d\n",j+1,stu[i].score[j]);printf("allscore:%d,order:%d\n",sum[i],c);}}voidSearchbymane(STUstu[],intn,charname[],intm)//9{inti,j,c=1,find=0,sum[N];for(i=0;i<n;i++){sum[i]=0;for(j=0;j<m;j++)sum[i]=sum[i]+stu[i].score[j];}for(i=0;i<n;i++){if(strcmp(stu[i].studentName,name)==0){find=1;break;}}if(find==0)printf("notfind\n");else{for(j=0;j<n;j++){if(sum[j]>sum[i])c++;}printf("ID:%10ld,name:%s\n",stu[i].studentID,stu[i].studentName);//以長整形打印用%ldfor(j=0;j<m;j++)printf("project%dscore:%d\n",j+1,stu[i].score[j]);printf("allscore:%d,order:%d\n",sum[i],c);}}voidstatistis(STUstu[],intn,intm)//10.{inta=0,b=0,c=0,d=0,e=0,i,j;doubleA,B,C,D,E;for(j=0;j<m;j++){for(i=0;i<n;i++){if(stu[i].score[j]>=90)a++;elseif(stu[i].score[j]>=80)b++;elseif(stu[i].score[j]>=70)c++;elseif(stu[i].score[j]>=60)d++;elsee++;}A=(double)a/n*100;B=(double)b/n*100;C=(double)c/n*100;D=(double)d/n*100;E=(double)e/n*100;printf("project%d\n",j+1