新手..编一程序,从键盘输入两个数字,输出此二数之和?

#include "stdio.h"
main ( )
{ int a,b,sum;
sum=a+b;

不知道后面的该怎么写了.请高手帮忙...最简单的问题呀..俺也不会.丢人啦!!!!
我是用C的....
刚学没几天..唉..都怪我没好好学啊....

没事，刚开始学都这样，时间长了自然就会了，加油~~
接着你的写：
#include<stdio.h>
main( )
{
int a,b,sum=0;

printf("Please input two numbers：\n");
scanf("%d%d",&a,&b);

sum=a+b;

printf("The sum of them is： %d\n",sum);

system("pause");
return 0;

}

zuomeng ba

C
=====================
float a,b;
printf("Input number1:\n");
scanf("%f",&a);
printf("Input number2:\n");
scanf("%f",&b);
printf("Final:\n");
printf("%f",a+b);

C++
=====================
#include <iostream>
using namespace std;

main()
{
float a,b;
cout<<"Input number1:"<<endl;
cin>>a;
cout<<"Input number2:"<<endl;
cin>>b;