#include <stdio.h>
#include <ctype.h>#include <time.h>#include <stdlib.h>#include <windows.h>#define IDNO_LENGTH 6#define CALC_KIND 4char getSignal();int getResult(int,int,char);void takeTest();void falsePrint(int);void correctPrint(int);//main函数void main(){ while(1) { takeTest(); }}//获取随机运算符char getSignal(){ char signal[CALC_KIND]={'+','-','*','/'}; srand((unsigned)time(NULL)); return signal[rand()%4];}//获取随机数int random(double start, double end){ return (int)(start+(end-start)*rand()/(RAND_MAX+ 1.0));}//运算int getResult(int num1,int num2,char signal){ int res; switch(signal) { case '+': res=num1+num2;break; case '-': res=num1-num2;break; case '*': res=num1*num2;break; case '/': res=num1/num2;break; default: res=0; printf("运算符不符合规则\n"); } return res;}//列出题目void takeTest(){ int giveRes; int num1; int num2; char signal; int printFlag; srand((unsigned)time(NULL)); signal=getSignal(); num1=random(0,100); num2=random(1,100); if(signal=='-') { if(num1<num2) { int temp; temp=num1; num1=num2; num2=temp; } } if(signal=='/') { if(num2==0) { int temp; temp=num1; num1=num2; num2=temp; } } printf("%d%c%d=",num1,signal,num2); scanf("%d",&giveRes); fflush(stdin); if(getResult(num1,num2,signal)==giveRes) { printFlag=random(1,5); correctPrint(printFlag); } else { printFlag=random(1,4); falsePrint(printFlag); printf("正确答案:%d\n",getResult(num1,num2,signal)); }}//回答正确打印信息void correctPrint(int num){ switch(num) { case 1: printf("You're right!\n");break; case 2: printf("It's OK!\n");break; case 3: printf("Correct!\n");break; case 4: printf("Perfect!\n");break; case 5: printf("Good!\n");break; default: printf("Powerful!\n");break; }}//回答错误打印信息void falsePrint(int num){ switch(num) { case 1: printf("You're lost!");break; case 2: printf("Failure!");break; case 3: printf("Come on!");break; case 4: printf("It's wrong!");break; default: printf("Incorrect!");break; }}