計(jì)算機(jī)輔導(dǎo)教學(xué)(CAI)軟件開發(fā)：教小學(xué)生學(xué)算術(shù)

1、#include<stdio.h>#include<string.h>#include <stdlib.h>#include <math.h>#include <time.h>void cd(); /菜單void gz(); /游戲規(guī)則函數(shù)void add(); /個(gè)位數(shù)加法void add1(); /十位數(shù)加法void sub(); /個(gè)位數(shù)減法void sub1(); /十位數(shù)減法void mul(); /個(gè)位數(shù)乘法void mul1(); /十位數(shù)乘法void div(); /個(gè)位數(shù)除法void div1(); /十位數(shù)除法vo

2、id tc(); /退出函數(shù)int sum=0,k;main()cd();return 0;void cd() /菜單int z;printf(" n"); printf(" 菜單 n");printf(" 0.規(guī)則 n");printf(" 1.加法 n");printf(" 2.減法 n");printf(" 3.乘法 n");printf(" 4.除法 n");printf(" n"); printf(" 請(qǐng)選擇 n&q

3、uot;); scanf("%d",&z);if(z>9|z<0)printf("輸入錯(cuò)誤！請(qǐng)重新輸入！n"); scanf("%d",&z);switch(z)case 0: gz(); break ;case 1: add(); break ;case 2: sub(); break ;case 3: mul(); break ;case 4: div(); break ;default:tc();void gz() /游戲規(guī)則函數(shù)int l;printf(" n"); printf

4、(" 游戲規(guī)則 n");printf(" 1、你可以選擇加法，減法，乘法，除法，運(yùn)算四種運(yùn)算。 n"); printf(" 2、每種運(yùn)算分為兩個(gè)等級(jí)，第一級(jí)和第二級(jí) n"); printf(" 3、第一級(jí)為個(gè)位數(shù)運(yùn)算，第二級(jí)為十位數(shù)運(yùn)算。 n"); printf(" 4、做第一級(jí)正確率達(dá)到90%，將進(jìn)入第二級(jí)。 n"); printf(" 5、若在第二級(jí)的正確率低于60%將會(huì)降級(jí)。 n"); printf(" n"); printf(" 輸入（0

5、）返回菜單n");scanf("%d",&l);if(l>=9|l<0)printf("輸入錯(cuò)誤！請(qǐng)重新輸入！n");printf(" 是否繼續(xù)挑戰(zhàn)？n");printf("Yes(0)繼續(xù)挑戰(zhàn)，No(1)結(jié)束!n");scanf("%d",&l);switch(l)case 0: cd(); break ;default:tc();void add() /個(gè)位數(shù)加法int x,y,i,j;float answer;int sum=0; /統(tǒng)計(jì)一次答對(duì)的題數(shù)

6、sumprintf("請(qǐng)輸入挑戰(zhàn)的題量："); /輸入的題目數(shù)量kscanf("%d",&k);for( i=1 ; i<=k ; i+)srand (unsigned)time(0); /用當(dāng)前時(shí)間作參數(shù)，計(jì)算隨機(jī)數(shù)種子 x=(rand()%10); /取09之間的隨機(jī)數(shù)y=(rand()%10);printf("%d+%d=",x,y);scanf("%f",&answer);if(answer!=(x+y)j=1;while(answer!=(x+y)&&j<3)p

7、rintf("答案錯(cuò)誤，請(qǐng)輸入正確答案：n"); printf("%d+%d=",x,y);scanf("%f",&answer);j+;if(j>=3)printf("正確答案：n");printf("%fn",answer=(float)x+(float)y); elseprintf("回答正確！n");elsesum+;printf("回答正確！n");printf("答對(duì)題數(shù)：%d 答錯(cuò)題數(shù)為：%5.2f%n",s

8、um,(k-sum),(sum/(float)k*100); if(sum/(float)k)>=0.9)printf("恭喜您晉級(jí)了！n");add1();elseprintf("抱歉您未能晉級(jí)n");tc();void add1() /十位數(shù)加法int x,y,i,k,j,sum=0 ; %d 一次答對(duì)率：float answer;printf("請(qǐng)輸入挑戰(zhàn)的題量：");scanf("%d",&k);for( i=1 ; i<=k ; i+)srand (unsigned)time(0);x

9、=(rand()%90+10);y=(rand()%90+10);printf("%d+%d=",x,y);scanf("%f",&answer);if(answer!=(x+y)j=1;while(answer!=(x+y)&&j<3)printf("答案錯(cuò)誤，請(qǐng)輸入正確答案：n"); printf("%d+%d=",x,y);scanf("%f",&answer);j+;if(j>=3)printf("正確答案：n");prin

10、tf("%fn",answer=(float)x+(float)y); elseprintf("回答正確！n");elsesum+;printf("回答正確！n");printf("答對(duì)題數(shù)：%d 答錯(cuò)題數(shù)：為：%5.2f%n",sum,(k-sum),(sum/(float)k*100);if(sum/(float)k)<0.6)printf("很抱歉，您降級(jí)了！回到第一級(jí)！n"); add();else %d 一次答對(duì)率printf("恭喜您，順利通關(guān)！n");tc

11、();void sub() /個(gè)位數(shù)減法int x , y , i , k , j , sum=0 ;float answer ;printf("請(qǐng)輸入挑戰(zhàn)的題量：");scanf("%d",&k);for( i=1 ; i<=k ; i+)srand (unsigned)time(0);loop: /配合goto轉(zhuǎn)跳x=(rand()%10);y=(rand()%10);if(x>=y)printf("%d-%d=",x,y);scanf("%f",&answer);if(answer

12、!=(x-y)j=1;while(answer!=(x-y)&&j<3)printf("答案錯(cuò)誤，請(qǐng)輸入正確答案：n"); printf("%d-%d=",x,y);scanf("%f",&answer);j+;if(j>=3)printf("正確答案：n");printf("%fn",answer=(float)x-(float)y); elseprintf("回答正確！n");elsesum+;printf("回答正確！n&q

13、uot;);elsegoto loop ;printf("答對(duì)題數(shù)：%d 答錯(cuò)題數(shù)：%d 為：%5.2f%n",sum,(k-sum),(sum/(float)k*100);if(sum/(float)k)>=0.9)printf("恭喜您晉級(jí)了！n");sub1();elseprintf("抱歉您未能晉級(jí)！n");tc();void sub1() /十位數(shù)減法int x , y , i , k , j ,sum=0 ;float answer ;printf("請(qǐng)輸入挑戰(zhàn)的題量：");scanf("

14、;%d",&k);for( i=1 ; i<=k ; i+)srand (unsigned)time(0);loop:x=(rand()%90+10);y=(rand()%90+10);if(x>=y)printf("%d-%d=",x,y);scanf("%f",&answer);if(answer!=(x-y)j=1;while(answer!=(x-y)&&j<3) 一次答對(duì)率printf("答案錯(cuò)誤，請(qǐng)輸入正確答案：n"); printf("%d-%d=&q

15、uot;,x,y);scanf("%f",&answer);j+;if(j>=3)printf("正確答案：n");printf("%fn",answer=(float)x-(float)y); elseprintf("回答正確！n");elsesum+;printf("回答正確！n");elsegoto loop ;printf("答對(duì)題數(shù)：%d 答錯(cuò)題數(shù)：為：%5.2f%n",sum,(k-sum),(sum/(float)k*100);if(sum/(fl

16、oat)k)<0.6)printf("很抱歉，您降級(jí)了！回到第一級(jí)！n"); sub();elseprintf("恭喜您，順利通關(guān)！n");tc();void mul() /個(gè)位數(shù)乘法int x , y , k , i , j , sum=0 ;float answer ;printf("請(qǐng)輸入挑戰(zhàn)的題量：");scanf("%d",&k); %d 一次答對(duì)率for( i=1 ; i<=k ; i+)srand (unsigned)time(0);x=(rand()%10);y=(rand()%

17、10);printf("%d*%d=",x,y);scanf("%f",&answer);if(answer!=(x*y)j=1;while(answer!=(x*y)&&j<3)printf("答案錯(cuò)誤，請(qǐng)輸入正確答案：n"); printf("%d*%d=",x,y);scanf("%f",&answer);j+;if(j>=3)printf("正確答案：n");printf("%fn",answer=(fl

18、oat)x*(float)y); elseprintf("回答正確！n");elsesum+;printf("回答正確！n");printf("答對(duì)題數(shù)：%d 答錯(cuò)題數(shù)：為：%5.2f%n",sum,(k-sum),(sum/(float)k*100);if(sum/(float)k)>=0.9)printf("恭喜您晉級(jí)了！n");mul1();elseprintf("抱歉您未能晉級(jí)！");tc(); %d 一次答對(duì)率void mul1() /十位數(shù)乘法int x , y , i , k

19、 , j ,sum=0 ;float answer ;printf("請(qǐng)輸入挑戰(zhàn)的題量：");scanf("%d",&k);for( i=1 ; i<=k ; i+)srand (unsigned)time(0);x=(rand()%90+10);y=(rand()%90+10);printf("%d*%d=",x,y);scanf("%f",&answer);if(answer!=(x*y)j=1;while(answer!=(x*y)&&j<3)printf(&quo

20、t;答案錯(cuò)誤，請(qǐng)輸入正確答案：n"); printf("%d*%d=",x,y);scanf("%f",&answer);j+;if(j>=3)printf("正確答案：n");printf("%fn",answer=(float)x*(float)y); elseprintf("回答正確！n");elsesum+;printf("回答正確！n");printf("答對(duì)題數(shù)：%d 答錯(cuò)題數(shù)：為：%5.2f%n",sum,(k-sum

21、),(sum/(float)k*100);if(sum/(float)k)<0.6) %d 一次答對(duì)率printf("很抱歉，您降級(jí)了！回到第一級(jí)！n"); mul();elseprintf("恭喜您，順利通關(guān)！n");tc();void div() /個(gè)位數(shù)除法int x , y , i , k , j ;int answer ;int sum=0 ;printf("請(qǐng)輸入挑戰(zhàn)的題量：");scanf("%d",&k);for( i=1 ; i<=k ; i+)srand (unsigned)

22、time(0);dox=(rand()%10);y=(rand()%10);while(y=0|x%y!=0);printf("%d/%d=",x,y);scanf("%d",&answer);if(answer!=(x/y)j=1;while(answer!=(x/y)&&j<3)printf("答案錯(cuò)誤，請(qǐng)輸入正確答案：n"); printf("%d/%d=",x,y);scanf("%f",&answer);j+;if(j>=3)printf(&

23、quot;正確答案：n");printf("%fn",answer=(x/y);elseprintf("回答正確！n"); elsesum+;printf("回答正確！n");printf("答對(duì)題數(shù)：%d 答錯(cuò)為：%5.2f%n",sum,(k-sum),(sum/(float)k*100); if(sum/(float)k)>=0.9)printf("恭喜您晉級(jí)了！n");div1();elseprintf("抱歉您未能晉級(jí)！");tc();void di

24、v1() /十位數(shù)除法int x , y , i , k , j , sum=0 ;int answer ;printf("請(qǐng)輸入挑戰(zhàn)的題量：");scanf("%d",&k);for( i=1 ; i<=k ; i+)srand (unsigned)time(0);dox=(rand()%90+10);y=(rand()%90+10);while(y=0|x%y!=0);printf("%d/%d=",x,y);scanf("%d",&answer);if(answer!=(x/y)j=1;while(answer!=(x/y)&&j<3) 題數(shù)：%d 一次答