学生成绩管理系统 源程序

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1、学生成绩管理系统源程序#include#include#include#include#include#defineSIZE8structstudent{charname[20];charnum[15];intscore[5];floataverage;structstudent*next;}stu[SIZE],temp,s;voidshuru(){inti,j,sum,length,flag=1,a;FILE*fp;while(flag==1){printf("Definearange>

2、classnumber:");scanf("%d",&a);printf("Inputthetotalnumberoftheclass(

3、core:");sum=0;for(j=0;j<3;j++){printf("score%d:",j+1);scanf("%d",&stu[i].score[j]);sum+=stu[i].score[j];}stu[i].average=sum/3.0;}fp=fopen("stu1","w");for(i=0;i

4、ameNO.score1score2score3sumaverage");for(i=0;i

5、{FILE*fp,*fp1;charn[15],name[20];inti,j,k,t,m,flag=1;if((fp=fopen("stu1","r"))==NULL){printf("Cannotopenthefile.");exit(0);}printf("originaldata:");for(i=0;fread(&stu[i],sizeof(structstudent),1,fp)!=0;i++){printf("%-15s%11s",stu[i].name,stu[i].num);for(t=0;t<3;t++)printf("%7d",stu[i].s

6、core[t]);printf("%10.2f",stu[i].average);}k=i;printf("Pleaseselectthemenu(1.number2.name):");scanf("%d",&m);switch(m){case1:printf("chaxunnumber:");scanf("%s",n);for(flag=1,i=0;i

7、r(flag=1,i=0;i