教务信息管理系统.docx
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教务信息管理系统
包括:
学生基本信息,如学号,姓名,性别,年龄,等;2.学生选修课程基本信息,包括课程编号,课程名称,考试成绩,平时成绩,综合成绩,学分,重修否,若重修,需考虑重修学期,重修成绩,并考虑多次重修情况。
只能用C语言,要有用户界面,必须用结构体和链表等数据结构。
/*-------------1-------------*/
#include
#include/*头文件*/
#include
#include
#include
#include
#include
#include
#defineNULL0
#defineESC0x001b/*退出*/
#defineF10x3b00/*查看帮助信息,调用HelpMassage()函数*/
#defineF20x3c00/*输入学生成绩*/
#defineF30x3d00/*按学号查找*/
#defineF40x3e00/*按姓名查找*/
#defineF50x3f00/*列出所有学生成绩*/
#defineF60x4000/*统计*/
structstuType/*定义结构体变量*/
{
charNO[11];/*学号长度为10*/
charXM[10];
charAGE[2];/*年龄长度为2*/
floatCJ[4];/*包含4门成绩*/
};
/*-------------2-------------*/
intJY_NO(char*stu_num,FILE*fp)/*检验学号的正确性*/
{structstuTypestud;
intNO;
char*p=stu_num;
if(strcmp(stu_num,"#")==0)return1;/*若输入"#"返回真值,不再循环输入*/
while(*p!
='\0')/*学号必须是数字,否则返回重新输入*/
{NO=(int)*p;
if(NO<48||NO>57)
{puts("\t\tUndefinedSN!
Pleaseinputagain!
\n");/*非法学号!
请重新输入!
*/
return0;
}
elsep++;/*指针加1*/
}
if(strlen(stu_num)!
=10)/*若学号长度不为10,则返回重新输入*/
{puts("\t\tLengthofSNError!
\n");/*学号长度不对*/
return0;
}
if(getchar()!
='\n')/*若学号后面的字符不是回车符,则学号长度大于10*/
{printf("\t\tThelengthofSNshouldmorethan10!
Pleaseinputagain!
\n");/*学号长度大于10个,请重新输入*/
do{}while(getchar()!
='\n');/*用getchar接收多余的字符*/
return0;
}
else
{
rewind(fp);/*使文件指针指向头*/
while(!
feof(fp))/*若文件指针未到结尾,就继续执行下面的循环,feof遇到文件结束符返回非零值,否则返回0*/
{fread(&stud,sizeof(structstuType),1,fp);/*读取一定长度的数据*/
if(strcmp(stu_num,stud.NO)==0)/*学号的唯一性*/
{printf("\t\tRepeatSN,Pleaseinputagain!
\n");/*学号重复!
请重新输入*/
printf("\t\tTheRecordofthisstudent:
\n");/*该学生成绩如下*/
printf("\t\tChinese:
%.1f\n",stud.CJ[0]);/*语文*/
printf("\t\tMath:
%.1f\n",stud.CJ[1]);/*数学*/
printf("\t\tEnglish:
%.1f\n",stud.CJ[2]);/*英语*/
printf("\t\tTotal:
%.1f\n",stud.CJ[3]);/*总评*/
return0;
}
}
}
return1;
}
/*-------------3-------------*/
intJY_NO2(char*stu_num)/*检验学号*/
{intNO;
char*p=stu_num;
if(strcmp(stu_num,"#")==0)return1;/*若输入“#”,则返回真值结束*/
if(strlen(stu_num)!
=10)/*学号长度不为10*/
{puts("\t\tLengthofSNError!
\n");/*学号长度不对*/
return0;
}
while(*p!
='\0')/*学号必须用数字,若包含有字母,或其它字符则返回假值重新输入*/
{NO=(int)*p;
if(NO<48||NO>57)
{puts("\t\tUndefinedSN!
Pleaseinputagain!
\n");/*非法学号!
请重新输入*/
return0;
}
elsep++;/*指针加1*/
}
if(getchar()!
='\n')/*检验学号长度是否大于10,并把多余的字符去掉*/
{printf("\t\tThelengthofSNshouldmorethan10!
Pleaseinputagain!
\n");/*学号长度大于10个,请重新输入*/
do{}while(getchar()!
='\n');
return0;
}
return1;
}
/*-------------4-------------*/
intJY_XM(char*stu_XM)/*检验姓名*/
{intPD;
char*p;
p=stu_XM;
while(*p!
='\0')/*姓名只能用英文*/
{
PD=(int)*p;
if(PD<0)
{puts("\t\tNameshoulduseEnglish,Pleaseinputagain!
\n");/*姓名只能用英文请重新输入*/
return0;
}
elsep++;/*使指针加1,指向下一汉字*/
}
if(getchar()!
='\n')/*姓名长度不得大于5个*/
{printf("\t\tThelengthofNameismorethan5,Pleaseinputagain!
\n");/*姓名长度大于5个请重新输入*/
do{}while(getchar()!
='\n');
return0;
}
return1;/*字符串全为汉字返回真*/
}
/*-------------5-------------*/
intJY_AGE(floatstu_AGE)/*年龄只能在0~100之间*/
{
if(stu_AGE<0||stu_AGE>100)
{printf("\t\tInputError!
Recordshouldbetween0~100!
\n");/*输入错误,成绩只能在0~100之间*/
return0;
}
return1;
}
/*-------------6-------------*/
intJY_CJ(floatstu_CJ)/*学生成绩只能在0~100之间*/
{
if(stu_CJ<0||stu_CJ>100)
{printf("\t\tInputError!
Recordshouldbetween0~100!
\n");/*输入错误,成绩只能在0~100之间*/
return0;
}
return1;
}
/*-------------7-------------*/
voidCreatFile()/*输入文件*/
{FILE*fp;
structstuTypestu,stu0={"","",};/*对stu0xianfuzhi*/
fp=fopen("stu.dat","wb+");/*打开或创建一个二进制文件,打开时将原来的内容删除*/
if(fp==NULL)
{printf("\t\tFileopensError!
\n\t\t\tPressAnykeyback...");/*文件打开失败,按任意键返回*/
getch();
return;
}
else
{while
(1)
{stu=stu0;
do{printf("\n\t\tPleaseinputSN:
");/*输入学号并检验其正确性*/
scanf("%10s",stu.NO);
}while(!
JY_NO(stu.NO,fp));
if(strcmp(stu.NO,"#")==0)break;
do{printf("\n\t\tPleaseinputName:
");/*输入姓名并检验其正确性*/
scanf("%10s",stu.XM);
}while(!
JY_XM(stu.XM));
do{printf("\n\t\tPleaseinputage:
");/*输入年龄绩并检验其正确性*/
scanf("%f",&stu.AGE);
}while(!
JY_AGE(stu.AGE[0]));
do{printf("\n\t\tPleaseinputrecordofChinese:
");/*输入成绩并检验其正确性*/
scanf("%f",&stu.CJ[0]);
}while(!
JY_CJ(stu.CJ[0]));
do{printf("\n\t\tPleaseinputrecordofMath:
");/*同上*/
scanf("%f",&stu.CJ[1]);
}while(!
JY_CJ(stu.CJ[1]));
do{printf("\n\t\tPleaseinputrecordofEnglish:
");
scanf("%f",&stu.CJ[2]);
}while(!
JY_CJ(stu.CJ[2]));
do{printf("\n\t\tPleaseinputrecordofTotal:
");
scanf("%f",&stu.CJ[3]);
}while(!
JY_CJ(stu.CJ[3]));
fwrite(&stu,sizeof(structstuType),1,fp);/*写文件*/
}
}
fclose(fp);/*关闭文件*/
}
/*-------------8-------------*/
voidSearch_Xuehao()/*按学号查询*/
{FILE*fp;
intflag;
structstuTypestu,stud;
fp=fopen("stu.dat","rb");
if(fp==NULL)/*若文件打不开则输出下面的信息*/
{printf("\t\tFileopensError!
\n\t\t\tPressAnykeyback...");
getch();
return;
}
else
{do{puts("\n\t\tPress\"#\"orsearch");
do{printf("\t\tPleaseinputtheSNwhatyouwant:
");
scanf("%10s",stu.NO);
}while(!
JY_NO2(stu.NO));
if(strcmp(stu.NO,"#")==0)break;/*若输入“#”则结束循环*/
flag=0;
rewind(fp);
while(fread(&stud,sizeof(structstuType),1,fp))/*检查文件指针结束*/
{if(strcmp(stu.NO,stud.NO)==0)/*比较学号*/
{puts("\t\tTheRecordofthisstudent:
");
printf("\t\tSN:
%s\n",stud.NO);
printf("\t\tName:
%s\n",stud.XM);
printf("\t\tAGE:
%.1f\n",stud.AGE[0]);
printf("\t\tChinese:
%.1f\n",stud.CJ[0]);
printf("\t\tMath:
%.1f\n",stud.CJ[1]);
printf("\t\tEnglish:
%.1f\n",stud.CJ[2]);
printf("\t\tTotal:
%.1f\n",stud.CJ[3]);
flag=1;/*记录学号是否查到*/
}
}
if(flag==0)puts("\t\tUndefinedSN");
}while(strcmp(stu.NO,"#")!
=0);
}
fclose(fp);/*关闭文件*/
}
/*-------------9-------------*/
voidSearch_Xingming()/*按姓名查找*/
{FILE*fp;
intflag=0;
structstuTypestu,stud;
fp=fopen("stu.dat","rb");
if(fp==NULL)
{printf("\t\tFileopensError!
\n\t\tPressAnykeyback...");
getch();
return;
}
else
{do{
do{printf("\t\tPleaseinputtheNameoftheStudentwhatyouwant:
");
scanf("%10s",stu.XM);
}while(!
JY_XM(stu.XM));
rewind(fp);/*文件指针指向头*/
while(fread(&stud,sizeof(structstuType),1,fp))
{if(strcmp(stu.XM,stud.XM)==0)/*比较姓名是否相同*/
{puts("\t\tThenameoftheStudentis:
");
printf("\t\tSN:
%s\n",stud.NO);
printf("\t\tName:
%s\n",stud.XM);
printf("\t\tAGE:
%.1f\n",stud.AGE[0]);
printf("\t\tChinese:
%.1f\n",stud.CJ[0]);
printf("\t\tMath:
%.1f\n",stud.CJ[1]);
printf("\t\tEnglish:
%.1f\n",stud.CJ[2]);
printf("\t\tTotal:
%.1f\n",stud.CJ[3]);
flag=1;/*记录姓名是否被查到*/
}
}
if(flag==0)puts("\n\t\tUndefinedName!
");
puts("\t\tContinue?
(y--yes,Elsekeyback)?
");
}while(getch()=='y');
}
fclose(fp);
/*puts("\t\tPressAnykeytocontinue...");*/
/*getch();*/
}
/*-------------10-------------*/
intListFile(void)/*输出文件,列出所有学生成绩*/
{FILE*fp;
intREC=0;/*记录学生人数*/
structstuTypestu;
fp=fopen("stu.dat","rb");
if(fp==NULL)
{printf("\t\tFileopensError!
\n\t\tPressAnykeyback...");
getch();
return1;
}
else{printf("\t\tRecordsoftheStudents:
\n");
printf("\t\tSN\t\tName\tChinese\tMath\tEnglish\tTotal\n");
rewind(fp);
while(fread(&stu,sizeof(structstuType),1,fp))
{/*每读取一个长度的数据就输出*/
printf("\t\t%s",stu.NO);
printf("\t%s",stu.XM);
printf("\t%.1f",stu.AGE);
printf("\t%.1f",stu.CJ[0]);
printf("\t%.1f",stu.CJ[1]);
printf("\t%.1f",stu.CJ[2]);
printf("\t%.1f",stu.CJ[3]);
printf("\n");
REC++;
if(REC%20==0)/*20个学生成绩,停一下*/
{printf("\t\tPressAnykeytocontinue...\n");
getch();
}
}
}
fclose(fp);/*关闭文件*/
printf("\t\tContinue...");
getch();
}
/*-------------11-------------*/
voidStatistics()/*统计及格和优秀人数*/
{FILE*fp;
intREC=0,unpass[4]={0},good[4]={0};/*REC--记录个数,即人数,unpass--重修人数,good--优秀人数*/
floathighest[4]={0},score[4]={0};/*highest--最高分,score--总分*/
structstuTypestu;
fp=fopen("stu.dat","rb");
if(fp==NULL)
{printf("\t\tFileopensError!
\n\t\tPressAnykeyback...");
getch();
return;
}
else{rewind(fp);
while(fread(&stu,sizeof(structstuType),1,fp))
{REC++;
score[0]=score[0]+stu.CJ[0];/*语文*/
if(stu.CJ[0]<=60)unpass[0]++;
if(stu.CJ[0]>=80)good[0]++;
if(highest[0]score[1]=score[1]+stu.CJ[1];/*数学*/
if(stu.CJ[1]<=60)unpass[1]++;
if(stu.CJ[1]>=80)good[1]++;
if(highest[1]score[2]=score[2]+stu.CJ[2];/*英语*/
if(stu.CJ[2]<=60)unpass[2]++;
if(stu.CJ[2]>=80)good[2]++;
if(highest[2]score[3]=score[3]+stu.CJ[3];/*总评*/
if(stu.CJ[3]<=60)unpass[3]++;
if(stu.CJ[3]<=80)good[3]++;
if(highest[3]}
if(REC==0)/*可以防止记录为0是REC作除数而造成的错误*/
{printf("\t\tYoudid'tinputtheName!
PressAnykeyback...");
getch();
return;
}
else{
printf("\tChinese\tMath\tEnglish\tTotal\n");/*输出统计信息*/
printf("\tAverage:
%.1f\t%.1f\t%.1f\t\t%.1f\n",score[0]/REC,score[1]/REC,score[2]/REC,score[3]/REC);
printf("\tToprecord:
%.1f\t%.1f\t%.1f\t\t%.1f\n",highest[0],highest[1],highest[2],highest[3]);
printf("\tNumberofgoodstudents:
%d\t\t%d\t%d\t\t%d\n",good[0],good[1],good[2],good[3]);
printf("\tNumberofunpassedstudents:
%d\t\t%d\t%d\t\t%d\n",unpass[0],unpass[1],unpass[2],unpass[3]);
}
}
fclose(fp);
printf("\n\t\t\tPressAnykeytocontinue...");
getch();
}
/*-------------12-------------*/
voidHelpMessage()
{clrscr();
printf("\n\n\n\n\nchixitongshilaoshisuobuzhizuoyebianzhiercheng,gaixitongjuyoucunchuxueshengshuju,anxuehao,xingmingchaxun,liechuxueshengchengjihetongjigongneng.\n\nshiyongfangfa:
xitongshulushujuhou,jiangzaidangqianmuluzhongjianliyigemingweistu.datwenjian,yongyubaocunshuludeshuju.xuehaoshulu