C语言第12讲，实现计算机功能，不报错，可是不计算
#include <stdio.h>
int main()
{
char sentence ;
float result;
printf("enetr your number and operate:");
scanf("%c",&sentence);
int a = sentence;
int b = sentence;
printf("%c",sentence);
if (sentence == '+')
{
result = a + b ;
printf("the result is: %f \n", result);
}
return 0;
}
char类型赋值给int类型会按照它的ASCII码来赋值的
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