Question

c语言用函数编写1+1=2的程序怎么写

Answer 1

#include"stdio.h"
main()
{
int a,b,c;
a=1;
b=1;
c=a+b;
printf("1+1=%d",c);
}

Answer 2

#include <stdio.h>
add();
int main(void)
{
int c;

c=add(1,1);
printf("%d\n",c);

return 0;
}
int add(int a,int b)
{
return (a+b);
}

Answer 3

int sum(x,y)
{
int m;
m=x+y;
return m;
}

main()
{
int a,b;
a=1;
b=1;
printf("%d+%d=%d",a,b,sum(a,b));
}

Answer 4

int a_add_b(int a,int b)
{
return (a+b);
}

调用 int c；
c=a_add_b(5,2);