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#include <stdio.h>
#include <stdlib.h>
double calculator(double x,char operate,double y);

int main(void){
double x,y;
char operate;
printf("ÇëÄúÊäÈëÒª²Ù×÷µÄÊý£º");
scanf("%f%c%f",&x,&operate,&y);
calcultor(x,operate,y);
return 0;
}

double calcultor(double x,char operate,double y){
switch(operate){

case '+' :
printf("%f%c%f=%f\n",x,operate,y,x+y);
break;
case '-' :
printf("%f%c%f=%f\n",x,operate,y,x-y);
break;
case '*' :
printf("%f%c%f=%f\n",x,operate,y,x*y);
break;
case '/' :
if(y==0){
printf("³ýÊý²»ÄÜΪ0£¡\n");
break;
}
printf("%f%c%f=%f\n",x,operate,y,x/y);
break;
defulat :
printf("ÄúÊäÈëµÄΪÎÞЧ×Ö·û£¬ÇëÖØÐÂÊäÈë!");
break;
}
return 0;
}


pc@pc:$ gcc -o calculator calculator_test.c
calculator_test.c:14: ´íÎó£º Óë¡®calcultor¡¯ÀàÐͳåÍ»
calculator_test.c:10: ´íÎó£º ¡®calcultor¡¯µÄÉÏÒ»¸öÒþʽÉùÃ÷ÔÚ´Ë


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#include <stdio.h>
#include <stdlib.h>
double calcultor(double x,char operate,double y);
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