四則運算 2.0

標籤：題目   輸入   main   print   scan   else   ase   ++   switch   

#include<stdio.h>#include<stdlib.h>#include <time.h>#define N gmain(){    int a,b,k,i,n, c,d,e,f,g;    do{    printf("\n請輸入題目數量: ");scanf("%d",&g);    printf("\n請輸入數字類型(1.整數 2.真分數) -1為退出程式: ");scanf("%d",&n);    switch(n)    {    case 1:    {    for(i=0;i<N;i++)    {    a=rand()%100+1;    b=rand()%100+1;    k=rand()%4+1;    printf("%d",a);    switch(k)    {    case 1:printf("+");break;    case 2:printf("-");break;    case 3:printf("*");break;    case 4:printf("/");break;    }    printf("%d=\t\t",b);    }    break;    }    break;    case 2:    {for(i=0;i<N;i++)    {    e=rand()%100+1;    f=rand()%100+1;    k=rand()%4+1;    if ( e>=f)        printf("%d/%d",f,e);    else        printf("%d/%d",e,f);    switch(k)    {    case 1:printf("+");break;    case 2:printf("-");break;    case 3:printf("*");break;    case 4:printf("/");break;    }    c=rand()%100+1;    d=rand()%100+1;    if ( c>=d)        printf("%d/%d=\t\t",d,c);    else        printf("%d/%d=\t\t",c,d);    }    break;    }    break;    }    }while(n!=-1);}

 

四則運算 2.0