第1个回答 2007-04-12
#include<stdio.h>
main()
{
float a,b,c;
char m;
printf(" input(+,-,*,/):");scanf("%c",&m);printf("\n");
printf("%c\n",m);
printf("please input a=:");
scanf("%f",&a); printf("\n");
printf("b=:"); scanf("%f",&b);printf("\n");
if(m=='+')printf("%f+%f=%f",a,b,c=a+b);
else if(m=='-')printf("%f-%f=%f\n",a,b,c=a-b);
else if(m=='*')printf("%f*%f=%f\n",a,b,c=a*b);
else printf("%f/%f=%f/n",a,b,c=a/b);
}