C程式語言-《 printf 》《scanf》的用法及格式 How-to: printf and scanf Basics

《printf》的格式（Format）:

#include

int main(void)

{
printf("hello, Welcome to Teaching Information blog!!\n");

}

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顯示的效果：



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《scanf》的格式（Format）:

#include

int main(void)
{
int a;
int b;
printf("Enter a and b are:\n");
scanf("%d %d" ,&a, &b);
printf("X=%d, Y=%d", a, b);
}

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輸入a=1， b=2 后的效果：



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Video (How-to: printf and scanf Basics)