学生成绩管理系统v3.0

//成绩管理系统v3.0//能动1302王清栋1306030217#include<stdio.h>#include<stdlib.h>#include<string.h>#defineN30voidInput(longnum[],intscore[],intn,charname[][10]);voidTotalave(intscore[],intn);voidScoredes(longnum[],intscore[],intn,charname[][10]);voidScoreas(longnum[],intscore[],intn,charname[][10]);voidNumas(longnum[],intscore[],intn,charname[][10]);voidNameorder(longnum[],intscore[],intn,charname[][10]);voidSearchbyno(longnum[],intscore[],intn,intx,charname[][10]);voidSearchbyname(longnum[],intscore[],intn,charc[],charname[][10]);voidstatistis(intscore[],intn);voidList(longnum[],intscore[],intn,charname[][10]);intmain(){intn,score[N],c,x;longnum[N];charname[N][10];chary[10];printf("输入学生人数");scanf("%d",&n);//getchar();printf("1.Inputrecord\n");printf("2.Caculatetotelandaveragescoreofeverycourse\n");printf("3.Sortindescendingorderbyscore\n");printf("4.Sortinascendingorderbyscore\n");printf("5.Sortinascendingorderbynumber\n");printf("6.Sortindictionaryorderbyname\n");printf("7.Searchbynumber\n");printf("8.searchbyname\n");printf("9.Statisticanalysis\n");printf("10.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,name);printf("Pleaseenteryourchoice:\n");break;case2://计算每门课程的总分和平均分Totalave(score,n);printf("Pleaseenteryourchoice:\n");break;case3://按chengji由高到低排出名次表Scoredes(num,score,n,name);printf("Pleaseenteryourchoice:\n");break;case4://按chengji由低到高排出名次表Scoreas(num,score,n,name);printf("Pleaseenteryourchoice:\n");break;case5://按学号由小到大排出名次表Numas(num,score,n,name);printf("Pleaseenteryourchoice:\n");break;case6://按学号由小到大排出名次表Nameorder(num,score,n,name);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);Searchbyno(num,score,n,x,name);printf("Pleaseenteryourchoice:\n");break;case8://按姓名查询学生排名及其各科成绩printf("请输入查找姓名\n");getchar();gets(y);Searchbyname(num,score,n,y,name);break;printf("Pleaseenteryourchoice:\n");case9://成绩分析所占百分比statistis(score,n);printf("Pleaseenteryourchoice:\n");break;case10://全部输出List(num,score,n,name);printf("Pleaseenteryourchoice:\n");break;k=j;}if(i!=k){t=score[k],h=num[k],strcpy(temp,name[k]);score[k]=score[i],num[k]=num[i],strcpy(name[k],name[i]);score[i]=t,num[i]=h,strcpy(name[i],temp);}}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(score[i]>score[pos])c++;}printf("ID:%10ld,name:%s,order:%d,",num[pos],name[pos],c);//以长整形打印用%ldprintf("score:%d\n",score[pos]);}}voidSearchbyname(longnum[],intscore[],intn,charc[],charname[][10])//8。按姓名查询学生排名及其考试成绩{inti,pos=-1,d=1;for(i=0;i<n;i++){if(strcmp(name[i],c)==0)pos=i;}if(pos==-1)printf("notfind\n");else{for(i=0;i<n;i++){if(score[i]>score[pos])d++;}}printf("ID:%10ld,name:%s,order:%d,",num[pos],name[pos],d);//以长整形打印用%ldprintf("score:%d\n",score[pos]);}voidstatistis(intscore[],intn)//9.案优秀良好中等及格不及格5个类别，统计每个类别的人数以及所占的百分比{inta=0,b=0,c=0,d=0,e=0,i;doubleA,B,C,D,E;for(i=0;i<n;i++){if(score[i]>=90)a++;elseif(score[i]>=80)b++;elseif(score[i]>=70)c++;elseif(score[i]>=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("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[],intn,charname[][10])//10输出每个学生的学号，考试成绩姓名，以及课程总分