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#include stdio.h
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#include stdlib.h
#include time.h
#define YES 1
#define NO 0
#define NUM_PROBLEM 10 //题目的数量
#define LIMIT_ADDSUB 100 //加法和减法操作数的上限
#define LIMIT_MULDIV 20 //乘法和除法操作数的上限
int expressionCount = 0;
struct expression
{
int num1;
int num2;
char op;
}expr[NUM_PROBLEM];
int createProblem(void);
int createAddProblem(void);
int createSubProblem(void);
int createMulProblem(void);
int createDivProblem(void);
int expressionExist(int num1, int num2, char op);
int main()
{
int i, answer, result;
float score;
srand((unsigned)time(NULL));
score = 0.0;
for (i = 1; i = NUM_PROBLEM; ++i)
{
printf("第%2d题: ", i);
result = createProblem();
scanf("%d", answer);
getchar();
if (result == answer)
score += 100.0/NUM_PROBLEM;
}
printf("Final Score:%.0f\n", score);
return 0;}
int createProblem(void)
{
char op;
int result;
op = rand()%4+1;
switch (op)
{
case 1: //加法
result = createAddProblem();
break;
case 2: //减法
result = createSubProblem();
break;
case 3: //乘法
result = createMulProblem();
break;
case 4: //除法
result = createDivProblem();
break;
default:
exit(1);
}
return result;}
int createAddProblem(void)
{
int num1, num2;
do
{
num1 = rand()%LIMIT_ADDSUB+1;
num2 = rand()%LIMIT_ADDSUB+1;
} while (expressionExist(num1, num2, '+'));
printf("%3d + %3d = ", num1, num2);
return (num1+num2);}
int createSubProblem(void)
{
int num1, num2, temp;
do
{
num1 = rand()%LIMIT_ADDSUB+1;
num2 = rand()%LIMIT_ADDSUB+1;
if (num1 num2)
{
temp = num1;
num1 = num2;
num2 = temp;
}
} while (expressionExist(num1, num2, '-'));
printf("%3d - %3d = ", num1, num2);
return (num1-num2);}
int createMulProblem(void)
{
int num1, num2;
do
{
num1 = rand()%LIMIT_MULDIV+1;
num2 = rand()%LIMIT_MULDIV+1;
} while (expressionExist(num1, num2, '*'));
printf("%3d * %3d = ", num1, num2);
return (num1*num2);}
int createDivProblem(void)
{
int num1, num2;
do
{
num1 = rand()%LIMIT_MULDIV+1;
num2 = rand()%LIMIT_MULDIV+1;
} while (expressionExist(num1, num2, '/'));
printf("%3d / %3d = ", num1*num2, num1);
return num2;}
int expressionExist(int num1, int num2, char op)
{
int i;
for (i = 0; i expressionCount; ++i)
{
if (expr[i].num1 == num1 expr[i].num2 == num2 expr[i].op == op)
return YES;
}
expr[i].num1 = num1;
expr[i].num2 = num2;
expr[i].op = op;
++expressionCount;
return NO;}
先拿去调试，把问题和需要补充的功能发给我，明天再帮你完善。
#include
#include
#include
int main(){
srand(time(NULL));
int a,b,c,score[10],trueValue,sum=0;
for(int i=0;i10;i++){
for(a=rand()%51,b=rand()%51;a+b50 || a+b50 || a-b0; a=rand()%51,b=rand()%51){;}
c=rand()%3;
for(int j=0;j3;j++){
if(c==1){
printf("%d:%d+%d=",i+1,a,b);
trueValue=a+b;
scanf("%d",score[i]);
if(score[i]!=trueValue){
printf("答案错误，请重新输入.\n");
score[i]=0;
}
else{
if(j==0){
score[i]=10;
}
else if(j==1){
score[i]=7;
}
else{
score[i]=5;
}
break;
}
}
else{
printf("%d:%d-%d=",i+1,a,b);
trueValue=a-b;
scanf("%d",score[i]);
if(score[i]!=trueValue){
printf("答案错误，请重新输入.\n");
score[i]=0;
}
else{
if(j==0){
score[i]=10;
}
else if(j==1){
score[i]=7;
}
else{
score[i]=5;
}
break;
}
}
}
if(score[i]==0){
printf("正确答案是：%d\n",trueValue);
}
sum=sum+score[i];
}
printf("你的成绩是:%d\n",sum);
if(sum90){
printf("SMART.\n");
}
else if(sum=80){
printf("GOOD.\n");
}
else if(sum=70){
printf("OK.\n");
}
else if(sum=60){
printf("PASS.\n");
}
else{
printf("TRYAGAIN\n");
}
return 0;
}
//vc 6.0调试通过
#includestdio.h
#includestdlib.h
#include time.h
int add(int x,int y)
{return x+y;}
int sub(int x,int y)
{return x-y;}
int mul(int x,int y)
{return x*y;}
void fun(char f)
{
int n,x,y,z,t,result,sum=0;
srand((unsigned)time(NULL));
printf("请选择答题的个数:\n");
scanf("%d",n);
for(int i=0;in;i++)
{
x=rand()%10;
y=rand()%10;
if(xy f=='-')
{t=x;x=y;y=t;}
if(f=='*')
{while(!x){x=rand()%10;}
while(!y){y=rand()%10;}}
printf("%d %c %d =",x,f,y);
scanf("%d",z);
switch(f)
{
case '+':
result=add(x,y);break;
case '-':
result=sub(x,y);break;
case '*':
result=mul(x,y);break;
}
if(result==z)
{printf("正确!\n");sum++;}
else
printf("错误!应该是%d\n",result);
}
printf("\n正确率为%f%%\n/////////////////////////////////\n\n",100.0*sum/n);
fflush(stdin);
}
void main()
{
printf("/////////////////////////////////\n");
printf(" 小学生数学测试软件\n");
printf("//////////////////////////////////\n\n");
char ch;
while(1)
{
printf("请选择题型--加(+),减(-),乘(*),退出(0): ");
ch=getchar();
if(ch=='+'||ch=='-'||ch=='*')
fun(ch);
else if(ch=='0')
exit(0);
else
printf("错误!\n");
}
}
#include stdio.h
#include stdlib.h
#include time.h
int ranNum(int a[], int n)
{
int i, j;
srand((unsigned)time(0));
for(i=0;in;i++)
{
a[i]=rand()%26;
for(j=0;ji;j++)
{
if(a[i]=a[j])
{
i--;
break;
}
}
}
return 0;
}
char ranOperator()
{
int k;
srand((unsigned)time());
k=rand()%2;
switch(k)
{
case 0 : return '+'; break;
default : return '-' ; break;
}
}
int main()
{
int i, num1[10], num2[10], input, result, count, score=0, max, min;
char op;
ranNum(num1, 10);
ranNum(num2, 10);
for(i=0;i10;i++)
{
max=num1[i]num2[i]?num1[i]:num2[i];
min=num1[i]num2[i]?num1[i]:num2[i];
op=ranOperator();
switch(op)
{
case '+' : result = max + min; break;
case '-' : result = max - min; break;
}
count=0;
printf("%d %c %d = \n", max, op, min);
while(count++3)
{
input=getchar();
if(input==result)
{
if(count==0)
{
score+=10;
break;
}
else if(count==1)
{
score+=7;
break;
}
else if(count==2)
{
score+=5;
break;
}
}
else
{
printf("计算错误！重新输入!\n");
count++;
}
}
printf("正确答案是%d\n",result);
}
if(score=90)
printf("SMART\n");
else if(score=80)
printf("GOOD\n");
else if(score=70)
printf("OK\n");
else if(score=60)
printf("PASS\n");
else
printf("TRY AGAIN\n");
return 0;
}
#includestdio.h
void delStr(char *s,char p)
{char *p1,*p2;
for(p1=p2=s;*p1;p1++)
if(*p1!=p)*p2++=*p1;
*p2='\0';
}
int main()
{char s[300],ch;
gets(s);
ch=getchar();
delStr(s,ch);
printf("%s\n",s);
return 0;
}