学生成绩管理系统v4.0

//成绩管理系统v1.0//能动1302王清栋1306030217#include<stdio.h>#include<stdlib.h>#defineN30#defineM6voidInput(longnum[],intscore[][M],intn,intm);voidTotalave(intscore[][M],intn,intm);voidevestuTotalave(intscore[][M],intn,intm,longnum[]);voidScoredes(longnum[],intscore[][M],intn,intm);voidScoreas(longnum[],intscore[][M],intn,intm);voidNumas(longnum[],intscore[][M],intn,intm);voidSearch(longnum[],intscore[][M],intn,intx,intm);voidstatistis(longnum[],intscore[][M],intn,intm);voidList(longnum[],intscore[][M],intn,intm);intmain(){intn,score[N][M],c,x,m;longnum[N];printf("输入学生人数");scanf("%d",&n);printf("输入考试科目");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.Searchbynumber\n");printf("8.Statisticanalysisforeverycourse\n");printf("9.Listrecord\n");printf("0.Exit\n");printf("Pleaseenteryourchoice:\n");printf("\n");for(;;){scanf("%d",&c);switch(c){case1://录入学生学号和各科成绩Input(num,score,n,m);printf("Pleaseenteryourchoice:\n");break;case2://计算每门课程的总分和平均分Totalave(score,n,m);printf("Pleaseenteryourchoice:\n");break;case3://计算每个学生的总分和平均分evestuTotalave(score,n,m,num);break;case4://按每个学生的总分由高到低排出名次表Scoredes(num,score,n,m);printf("Pleaseenteryourchoice:\n");break;case5://按每个学生的总分由低到高排出名次表Scoreas(num,score,n,m);printf("Pleaseenteryourchoice:\n");break;case6://按学号由小到大排出名次表Numas(num,score,n,m);printf("Pleaseenteryourchoice:\n");break;case7://按学号查询学生排名及其各科成绩printf("请输入查找学号\n");scanf("%d",&x);Search(num,score,n,x,m);printf("Pleaseenteryourchoice:\n");break;case8://成绩分析所占百分比statistis(num,score,n,m);printf("Pleaseenteryourchoice:\n");break;case9://全部输出List(num,score,n,m);Totalave(score,n,m);printf("Pleaseenteryourchoice:\n");break;case0:exit(0);}}return0;}voidInput(longnum[],intscore[][M],intn,intm)//1{inti,j;for(i=0;i<n;i++)绩{inthigh=n-1,low=0,mid,c=1,pos,o,find=0,i,j,k,t[M],h,sum[N],l;for(i=0;i<n;i++){sum[i]=0;for(j=0;j<m;j++){sum[i]=sum[i]+score[i][j];}}for(i=0;i<n;i++){k=i;for(j=i+1;j<n;j++){if(num[j]<num[k])k=j;}if(i!=k){h=num[k],o=sum[k];num[k]=num[i],sum[k]=sum[i];num[i]=h,sum[i]=o;for(l=0;l<m;l++){t[l]=score[k][l];score[k][l]=score[i][l];score[i][l]=t[l];}}}while(find==0&&low<=high){mid=(high+low)/2;if(x>num[mid])low=mid+1;elseif(x<num[mid])high=mid-1;else{pos=mid;find=1;}}if(find==0)printf("notfind\n");else{for(i=0;i<n;i++){if(sum[i]>sum[pos])c++;}printf("ID:%10ld\n",num[pos]);//以长整形打印用%ldfor(j=0;j<m;j++)printf("project%dscore:%d\n",j+1,score[pos][j]);printf("allscore:%d,order:%d\n",sum[pos],c);}}voidstatistis(longnum[],intscore[][M],intn,intm)//8.{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(score[i][j]>=90)a++;elseif(score[i][j]>=80)b++;elseif(score[i][j]>=70)c++;elseif(score[i][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);printf("优秀人数%d,百分比:%f%%\n",a,A);printf("良好人数%d,百分比:%f%%\n",b,B);printf("中等人数%d,百分比:%f%%\n",c,C);printf("及格人数%d,百分比:%f%%\n",d,D);printf("不及格人数%d,百分比:%f%%\n",e,E);}}voidList(longnum[],intscore[][M],intn,intm){inti,j,sum[N];doubleave[N];for(i=0;i<n;i++){sum[i]=0;for(j=0;j<m;j++){sum[i]=sum[i]+score[i][j];