基於http://www.cnblogs.com/HAOZHE/p/5276763.html改編寫的關於隨機生成四則運算的小程式 github源碼和工程文件地址：https://github.com/HuChengLing/- 基本要求： 除了整數以外，還能支持真分數的四則運算。 對實現的功能進行描 ...
基於http://www.cnblogs.com/HAOZHE/p/5276763.html改編寫的關於隨機生成四則運算的小程式
github源碼和工程文件地址：https://github.com/HuChengLing/-
基本要求：
除了整數以外，還能支持真分數的四則運算。
對實現的功能進行描述，並且對實現結果要求截圖。
主要功能：運算小學四則運算，可以選擇加減乘除以及混合運算。
設計思想：首先思考運算數字範圍，考慮小學生的運算能力，然後分類運算方法，分為加減乘除混合運算，
然後可以選擇是繼續做題還是退出程式，可以總結做對或者做錯的題數，方便計算正確以及錯誤的題數。
二 程式代碼：2017-09-16
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#include<time.h>
#include<conio.h>
#include<string.h>
int right = 0;
int wrong = 0;
char getSignal();
int calculateIntegerResult(int num1, int num2, char signal);
//int getNumber();
void doIntegerSubject();
void falsePrint(int);
void correctPrint(int);
/*char getSignal()
{
char signal[4] = { '+','-','*','/' };
srand((unsigned)time(NULL));
return signal[rand() % 4];
}*/
char getSignal()
{
srand((unsigned)time(NULL));
int a;
a = rand() % 4 + 1;
switch (a)
{
case 1:
return '+';
break;
case 2:
return'-';
break;
case 3:
return '*';
break;
case 4:
return '/';
break;
default:
break;
}
}
/*int getNumber()
{
srand((unsigned)time(NULL));
int a, b;
a = rand() % 100 + 1;
b = rand() % 100 + 1;
return 0;
}*/
int calculateIntegerResult(int num1, int num2, char signal)
{
int t;
switch (signal)
{
case '+':
t = num1 + num2;
break;
case'-':
t = num1 - num2;
break;
case'*':
t = num1*num2;
break;
case'/':
t = num1 / num2;
break;
default:
t = 0;
printf("運算符不符合規則\n");
break;
}
return t;
}
void calculateMarkResult(int num1, int num2, int num3, int num4, char signal, int mark[5])
{
switch (signal)
{
case '+':
if (num2 == num4)
{
mark[0] = num1 + num3;
mark[1] = num1;
}
else
{
mark[0] = num1*num4 + num2*num3;
mark[1] = num2*num4;
}
break;
case'-':
if (num2 == num4)
{
mark[0] = num1 - num3;
mark[1] = num1;
}
else
{
mark[0] = num1*num4 - num2*num3;
mark[1] = num2*num4;
}
break;
case'*':
mark[0] = num1*num3;
mark[1] = num2*num4;
break;
case'/':
mark[0] = num1*num4;
mark[1] = num2*num3;
break;
default:
printf("運算符不符合規則\n");
break;
}
}
void doIntegerSubject()
{
int a, b, giverAnswer, printFlag;
char signal;
srand((unsigned)time(NULL));
a = rand() % 100 + 1;
b = rand() % 100 + 1;
signal = getSignal();
if (signal == '/')
{
if (b == 0)
{
int temp;
temp = b;
b = a;
a = temp;
}
}
printf("please do blew problem:\n");
printf("%d %c %d=", a, signal, b);
//giverAnswer = _getch();
scanf_s("%d", &giverAnswer);
fflush(stdin);
if (calculateIntegerResult(a, b, signal) == giverAnswer)
{
right++;
srand((unsigned)time(NULL));
printFlag = rand() % 4 + 1;
correctPrint(printFlag);
}
else
{
wrong++;
srand((unsigned)time(NULL));
printFlag = rand() % 4 + 1;;
falsePrint(printFlag);
printf("\n正確答案：%d\n", calculateIntegerResult(a, b, signal));
}
}
void doMarkSubject()
{
int a, b, c, d, i = 0, printFlag;
int result[5];
char giverNumber[10];
char signal;
int x, y, j;
signal = getSignal();
srand((unsigned)time(NULL));
while (1)
{
a = rand() % 100;
while (1)
{
b = rand() % 100;
if (b)
break;
}
if (a < b)
break;
}
while (1)
{
c = rand() % 100;
while (1)
{
d = rand() % 10;
if (d)
break;
}
if (c < d)
break;
}
/*a = rand() % 100 + 1;
b = rand() % 100 + 1;
c = rand() % 100 + 1;
d = rand() % 100 + 1;
signal = getSignal();
if (b == 0 || a>b)
{
int temp;
temp = b;
b = a;
a = temp;
}
if (d == 0 || c>d)
{
int f;
f = b;
b = a;
a = f;
}*/
printf("please do blew problem:\n");
printf("%d/%d %c %d/%d=", a, b, signal, c, d);
//giverAnswer = _getch();
i = 0;
while (1)
{
giverNumber[i] = _getche();
if (giverNumber[i] == '/')
break;
i++;
}
x = 0;
for (j = 0; j < i; j++)
{
x = x + pow(10, (i - 1 - j))*(giverNumber[j] - '0');
}
scanf_s("%d", &y);
calculateMarkResult(a, b, c, d, signal, result);
//scanf_s("%d", &giverNumber[i]);
fflush(stdin);
if (x == result[0] && y == result[1])
{
right++;
srand((unsigned)time(NULL));
printFlag = rand() % 4 + 1;
correctPrint(printFlag);
}
else
{
wrong++;
srand((unsigned)time(NULL));
printFlag = rand() % 4 + 1;;
falsePrint(printFlag);
int *dd;
printf("\n正確答案：%d/%d\n", result[0], result[1]);
//printf("\n正確答案：%d\n", calculateMarkResult(a, b, signal, c, d));
}
}
//回答正確列印信息
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("Oh my gag!\n"); break;
default:
printf("Powerful!\n"); break;
}
}
//回答錯誤列印信息
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;
}
}
void main()
{
int total;
int con=0 , choice,choice1;
printf("welcome to math world!:");
system("cls");
if (con = 0)
{
printf("\t\t\t 1.整數運算\n");
printf("\t\t\t 2.分數運算\n");
printf("請選擇：\n");
scanf_s("%d", &choice);
system("cls");
switch (choice)
{
case 1:
while (right >= wrong)
{
doIntegerSubject();
}
total = right + wrong;
printf("你一共答了:%d道題其中答對了%d 道答錯了%d道\n", total, right, wrong);
break;
case 2:
while (right >= wrong)
{
doMarkSubject();
}
total = right + wrong;
printf("你一共答了:%d道題其中答對了%d 道答錯了%d道\n", total, right, wrong);
break;
}
system("pause");
}
printf("\n\t\t\t1.重新選擇？\n");
printf("\n\t\t\t2.退出運算？\n");
scanf_s("%d", &choice1);
if (choice1 == 1)
{
system("cls");
con = 0;
}
else if (choice1 == 2)
{
exit;
}
else
printf("抱歉!，你輸入的指令有誤!請重新輸入!\n");
system("pause");
}
總結：一個簡單的自動隨機生成四則運算 之前百度的源碼，它的功能主要是隨機生成符號和隨機數來達到隨機的加、減、乘、除的算術表達數，他也沒有讓用戶自己選擇是否繼續運算或者退出系統，也不支持正分數的運算。 在網路源碼的基礎上，我將原來的隨機獲取函數進行了修改，其次我增加分數運算和分數判斷，以及統計正誤數據的變數並輸出來和用戶可以自行選擇是否繼續運算的選項。
