考试系统实验报告.docx
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考试系统实验报告
#include
#include
#include
#include#defineMax500
#defineAdd100
intm;
typedefstructtest_q
{
chartitle[200];
charchoice_a[50];
charchoice_b[50];
charchoice_c[50];
charchoice_d[50];
charother[50];
charanswer[5];
}subject;
typedefstructhead_q
{
subject*p;
}head_q;
head_q*head=（head_q*）malloc（Max*sizeof（head_q））;//需要解释............
FILE*fp,*tp;
intinitial（）//初始化，把所有题目放进结构数组
{
inti=1,n=Max,flat=0;
if（（fp=fopen（"12.txt","r"））==NULL）
{
flat=1;
if（（fp=fopen（"12.txt","w"））==NULL）
{
printf（"fileopenerrorone\n"）;
exit（0）;
}
}
if（flat）
{
for（i=1;i<=10;i++）
head[i].p=（subject*）malloc（sizeof（subject））;
i=1;
strcpy（head[i].p->title,"It'sseventhirty.I__gotoshooc.\n"）;
strcpy（head[i].p->choice_a,"A.havegot\n"）;
strcpy（head[i].p->choice_b,"B.havegotto\n"）;
strcpy（head[i].p->choice_c,"C.goto\n"）;
strcpy（head[i].p->choice_d,"D.hadgotto\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"B\n"）;
i=2;
strcpy（head[i].p->title,"Hecameintotheclassroom_____.\n"）;
strcpy（head[i].p->choice_a,"A.veryupset\n"）;
strcpy（head[i].p->choice_b,"B.beingupset\n"）;
strcpy（head[i].p->choice_c,"C.toupset\n"）;
strcpy（head[i].p->choice_d,"D.tobeupset\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"A\n"）;
i=3;
strcpy（head[i].p->title,"ThisisthefirsttimethatI___atthemeeting.\n"）;
strcpy（head[i].p->choice_a,"A.hadspoken\n"）;
strcpy（head[i].p->choice_b,"B.hbavespoken\n"）;
strcpy（head[i].p->choice_c,"C.am\n"）;
strcpy（head[i].p->choice_d,"D.was\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"B\n"）;
i=4;
strcpy（head[i].p->title,"Hiswholeschooleducation___only2yearsbecauseofhisillness.\n"）;
strcpy（head[i].p->choice_a,"A.addedup\n"）;
strcpy（head[i].p->choice_b,"B.addedupin\n"）;
strcpy（head[i].p->choice_c,"C.addedupto\n"）;
strcpy（head[i].p->choice_d,"D.wasaddedup\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"C\n"）;
i=5;
strcpy（head[i].p->title,"Areyou__yourclassmateswell?
\n"）;
strcpy（head[i].p->choice_a,"A.gettingalong\n"）;
strcpy（head[i].p->choice_b,"B.getlongwith\n"）;
strcpy（head[i].p->choice_c,"C.gettinglongwith\n"）;
strcpy（head[i].p->choice_d,"D.gettingalongwithlifeinthecountry\n"）;
strcpy（head[i].p->other,"***********************************\n"）;
strcpy（head[i].p->answer,"D\n"）;
i=6;
strcpy（head[i].p->title,"Wearelivinga___\n"）;
strcpy（head[i].p->choice_a,"A.still\n"）;
strcpy（head[i].p->choice_b,"B.quiet\n"）;
strcpy（head[i].p->choice_c,"C.calm\n"）;
strcpy（head[i].p->choice_d,"D.silent\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"B\n"）;
i=7;
strcpy（head[i].p->title,"Hisbackacheisonly____fornotwateringtheflowers.\n"）;
strcpy（head[i].p->choice_a,"A.areason\n"）;
strcpy（head[i].p->choice_b,"B.acause\n"）;
strcpy（head[i].p->choice_c,"C.anexcuse\n"）;
strcpy（head[i].p->choice_d,"D.reasons\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"C\n"）;
i=8;
strcpy（head[i].p->title,"Ourteachersmadeus___alotofhomeworkafterachool.\n"）;
strcpy（head[i].p->choice_a,"A.todo\n"）;
strcpy（head[i].p->choice_b,"B.doing\n"）;
strcpy（head[i].p->choice_c,"C.do\n"）;
strcpy（head[i].p->choice_d,"D.tohavedoneuntilseveno'clock\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"C\n"）;
i=9;
strcpy（head[i].p->title,"Theshop___until7o'clock.\n"）;
strcpy（head[i].p->choice_a,"A.staysopened\n"）;
strcpy（head[i].p->choice_b,"B.continuesopen\n"）;
strcpy（head[i].p->choice_c,"C.staysopen\n"）;
strcpy（head[i].p->choice_d,"D.continuesopened\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"B"）;
i=10;
strcpy（head[i].p->title,"We______intheneighborhood.\n"）;
strcpy（head[i].p->choice_a,"A.happenedbeing\n"）;
strcpy（head[i].p->choice_b,"B.happenedbe\n"）;
strcpy（head[i].p->choice_c,"C.madedianies\n"）;
strcpy（head[i].p->choice_d,"D.keptdianies\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"C"）;
for（i=1;i<=10;i++）
{
fputs（head[i].p->title,fp）;
fputs（head[i].p->choice_a,fp）;
fputs（head[i].p->choice_b,fp）;
fputs（head[i].p->choice_c,fp）;
fputs（head[i].p->choice_d,fp）;
fputs（head[i].p->other,fp）;
fputs（head[i].p->answer,fp）;
}
if（fclose（fp））
{
printf（"filecloseerrorone"）;
exit（0）;
}
}
i=1;
if（（flat&&（fp=fopen（"12.txt","r"））==NULL））
{
printf（"fileopenerrorone\n"）;
exit（0）;
}
if（fp!
=NULL）
{
while（!
feof（fp））
{
head[i].p=（subject*）malloc（sizeof（subject））;
fgets（head[i].p->title,200,fp）;
fgets（head[i].p->choice_a,50,fp）;
fgets（head[i].p->choice_b,50,fp）;
fgets（head[i].p->choice_c,50,fp）;
fgets（head[i].p->choice_d,50,fp）;
fgets（head[i].p->other,50,fp）;
fgets（head[i].p->answer,5,fp）;
i++;
if（i>=n）
{
head=（head_q*）realloc（head,（n+Add）*sizeof（head_q））;
n+=Add;
}
}
if（fclose（fp））
{
printf（"filecloseerrorone"）;
exit（0）;
}
i--;
m=i;
}
returnm;
return0;
}intwatch_all（）//查看所有试题的函数
{
inti=1,j=1;
for（;i<=m;）
{
if（head[i].p==NULL）
i++;
else
{
printf（"%d.%s\n%s\n%s\n",j,head[i].p->title,head[i].p->choice_a,head[i].p->choice_b）;
printf（"%s\n%s\n%s\n",head[i].p->choice_c,head[i].p->choice_d,head[i].p->other）;
i++;
j++;
}
}
return0;
}intrestore（）//功能还原函数
{
inti=1,n;
charch[50];
printf（"此还原功能主要是给操作不当，导致程序运行错误，崩溃使用!
!
\n"）;
printf（"使用此功能后，之前所有增删题目记录全部清除，\n程序还原为最初的十道英语题\n"）;
printf（"所以此功能请谨慎使用，若确定使用此功能，请输入1\n"）;
scanf（"%d",&n）;
if（n==1）
{
for（i=1;i<=10;i++）
head[i].p=（subject*）malloc（sizeof（subject））;
i=1;
strcpy（head[i].p->title,"It'sseventhirty.I__gotoshooc.\n"）;
strcpy（head[i].p->choice_a,"A.havegot\n"）;
strcpy（head[i].p->choice_b,"B.havegotto\n"）;
strcpy（head[i].p->choice_c,"C.goto\n"）;
strcpy（head[i].p->choice_d,"D.hadgotto\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"B\n"）;
i=2;
strcpy（head[i].p->title,"Hecameintotheclassroom_____.\n"）;
strcpy（head[i].p->choice_a,"A.veryupset\n"）;
strcpy（head[i].p->choice_b,"B.beingupset\n"）;
strcpy（head[i].p->choice_c,"C.toupset\n"）;
strcpy（head[i].p->choice_d,"D.tobeupset\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"A\n"）;
i=3;
strcpy（head[i].p->title,"ThisisthefirsttimethatI___atthemeeting.\n"）;
strcpy（head[i].p->choice_a,"A.hadspoken\n"）;
strcpy（head[i].p->choice_b,"B.hbavespoken\n"）;
strcpy（head[i].p->choice_c,"C.am\n"）;
strcpy（head[i].p->choice_d,"D.was\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"B\n"）;
i=4;
strcpy（head[i].p->title,"Hiswholeschooleducation___only2yearsbecauseofhisillness.\n"）;
strcpy（head[i].p->choice_a,"A.addedup\n"）;
strcpy（head[i].p->choice_b,"B.addedupin\n"）;
strcpy（head[i].p->choice_c,"C.addedupto\n"）;
strcpy（head[i].p->choice_d,"D.wasaddedup\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"C\n"）;
i=5;
strcpy（head[i].p->title,"Areyou__yourclassmateswell?
\n"）;
strcpy（head[i].p->choice_a,"A.gettingalong\n"）;
strcpy（head[i].p->choice_b,"B.getlongwith\n"）;
strcpy（head[i].p->choice_c,"C.gettinglongwith\n"）;
strcpy（head[i].p->choice_d,"D.gettingalongwithlifeinthecountry\n"）;
strcpy（head[i].p->other,"***********************************\n"）;
strcpy（head[i].p->answer,"D\n"）;
i=6;
strcpy（head[i].p->title,"Wearelivinga___\n"）;
strcpy（head[i].p->choice_a,"A.still\n"）;
strcpy（head[i].p->choice_b,"B.quiet\n"）;
strcpy（head[i].p->choice_c,"C.calm\n"）;
strcpy（head[i].p->choice_d,"D.silent\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"B\n"）;
i=7;
strcpy（head[i].p->title,"Hisbackacheisonly____fornotwateringtheflowers.\n"）;
strcpy（head[i].p->choice_a,"A.areason\n"）;
strcpy（head[i].p->choice_b,"B.acause\n"）;
strcpy（head[i].p->choice_c,"C.anexcuse"）;
strcpy（head[i].p->choice_d,"D.reasons\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"C\n"）;
i=8;
strcpy（head[i].p->title,"Ourteachersmadeus___alotofhomeworkafterachool.\n"）;
strcpy（head[i].p->choice_a,"A.todo\n"）;
strcpy（head[i].p->choice_b,"B.doing\n"）;
strcpy（head[i].p->choice_c,"C.do\n"）;
strcpy（head[i].p->choice_d,"D.tohavedoneuntilseveno'clock\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"C\n"）;
i=9;
strcpy（head[i].p->title,"Theshop___until7o'clock.\n"）;
strcpy（head[i].p->choice_a,"A.staysopened\n"）;
strcpy（head[i].p->choice_b,"B.continuesopen\n"）;
strcpy（head[i].p->choice_c,"C.staysopen\n"）;
strcpy（head[i].p->choice_d,"D.continuesopened\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"B\n"）;
i=10;
strcpy（head[i].p->title,"We______intheneighborhood.\n"）;
strcpy（head[i].p->choice_a,"A.happenedbeing\n"）;
strcpy（head[i].p->choice_b,"B.happenedbe\n"）;
strcpy（head[i].p->choice_c,"C.madedianies\n"）;
strcpy（head[i].p->choice_d,"D.keptdianies\n"）;
strcpy（head[i].p->other,"**********************************\n"）;
strcpy（head[i].p->answer,"C"）;
if
（1）
{
if（（fp=fopen（"12.txt","w"））==NULL）
{
printf（"fileopenerrorone\n"）;
exit（0）;
}
for（i=1;i<=10;i
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