2015.10.20

#include<stdio.h>

main()

{

int a,b;

char hh,mm;

/*定义字符变量op*/

hh=‘+‘;

mm=‘=‘;

scanf("%d",&a);

putchar(hh);

scanf("%d",&b);

putchar(mm);

printf("%d",a+b);

/*整数计算器*/

int y,q;

char m,n;

n=‘=‘;

scanf("%d%c%d",&y,&m,&q);

printf("%c",n);

if(m==‘+‘)

printf("%d\n",y+q);

else if(m==‘-‘)

printf("%d\n",y-q);

else if(m==‘*‘)

printf("%d\n",y*q);

else if(m==‘/‘)

printf("%d\n",y/q);

int month;

printf("please input month\n");

scanf("%d",&month);

switch(month)

{

case 1:printf("january\n");break;

case 2:printf("february\n");break;

case 3:printf("march\n");break;

case 4:printf("april\n");break;

case 5:printf("may\n");break;

case 6:printf("jun\n");break;

case 7:printf("july\n");break;

case 8:printf("august\n");break;

case 9:printf("september\n");break;

case 10:printf("octomber\n");break;

case 11:printf("november\n");break;

case 12:printf("december\n");break;

}

int shuru,chengji;

scanf("%d",&shuru);

chengji=shuru/10;

switch(chengji)

{

case 10:

case 9:printf("A\n");break;

case 8:printf("B\n");break;

case 7:printf("C\n");break;

case 6:printf("D\n");break;

case 5:

case 4:

case 3:

case 2:

case 1:

case 0:printf("E\n");break;

}

/*SWITCH计算器*/

int qq,ee;

char ww,tt;

tt=‘=‘;

scanf("%d%c%d",&qq,&ww,&ee);

switch(ww)

{

case ‘+‘:printf("%c%d",tt,qq+ee);break;

case ‘-‘:printf("%c%d",tt,qq-ee);break;

case ‘*‘:printf("%c%d",tt,qq*ee);break;

case ‘/‘:printf("%c%d",tt,qq/ee);break;

}

}/*今天这个网络真是醉了！！！！一发布就没了，害的我写了四边！！！！！！！！！！！！！！！！！！！！！*/