求兩數之和，用C語言怎麽寫？謝謝

<stdio.h>int

main

(){int

a,b,sum;

//申明a,b,sum為整型

a=1;b=1;

//給a,b賦值,這裏a,b自己定

sum=a+b;

//求和

printf{"the

sum

is

%d",sum};

//輸出sum的值

return

(0);}

求輸入的兩數之和#include

<stdio.h>int

main

(){int

a,b,sum;

printf{"Please

enter

x,y:"};

//提示輸入x,y

scanf{"%d,%d",&a,&b};

//將輸入的值賦給a,b

sum=a+b;

//求和

printf{"the

sum

is

%d",sum};

//輸出sum的值

return

(0);

}

使用函數求和：

#include

<stdio.h>int

sum(int

x,int

y)

//定義求和函數{int

sum;

//申明sum為整數型sum=x+y;

//將輸入函數的x,y求和return(sum);

//向函數返回sum的值}

int

main

()

//以下為主函數{int

a,b,sum;

sum=sum(a,b);

//調用求和函數

printf{"the

sum

is

%d",sum};

//輸出sum的值

return

(0);

}

原創噢～