实验1_C语言输入输出和简单程序应用编程

任务一

1-1

#include<stdio.h>
int main()
{
printf(" O ");
printf("<H>");
printf("I I");
printf(" O ");
printf("<H>");
printf("I I");
return 0;
}

1-2

#include<stdio.h>
int main()
{
printf(" O   O\n");
printf("<H> <H>\n");
printf("I I I I\n");
return 0;
}

 

任务二

#include <stdio.h>
int main()
{
double a, b, c;
scanf("%lf%lf%lf", &a, &b, &c);
if(a+b>c)printf("能构成三角形\n");
elseprintf("不能构成三角形\n");
return 0;
}

 

任务三

#include <stdio.h>
int main()
{
char ans1, ans2; 
printf("每次课前认真预习、课后及时复习了没? (输入y或Y表示有，输入n或N表示没有) :");
ans1 = getchar();
getchar();
printf("\n动手敲代码实践了没? (输入y或Y表示敲了，输入n或N表示木有敲) : ");
ans2 = getchar();
if(ans1-ans2==0)printf("\n罗马不是一天建成的, 继续保持哦:)\n");
elseprintf("\n罗马不是一天毁灭的, 我们来建设吧\n");
return 0;
}

 

任务四

#include<stdio.h>
int main()
{double x, y;char c1, c2, c3;int a1, a2, a3;scanf("%d%d%d", &a1, &a2, &a3);printf("a1 = %d, a2 = %d, a3 = %d\n", a1,a2,a3);scanf("%c%c%c", &c1, &c2, &c3);printf("c1 = %c, c2 = %c, c3 = %c\n", c1, c2, c3);scanf("%f%lf", &x, &y);printf("x = %f, y = %lf\n",x, y);return 0;
}

 

任务五

#include <stdio.h>
int main()
{
int year;
year=1000000000/60/60/24/365;
printf("10亿秒约等于%d年\n", year);
return 0;
}

 

任务六

#include<stdio.h> 
#include<math.h>
int main()
{double x, ans;while(scanf("%lf", &x) != EOF){ans = pow(x, 365);printf("%.2f的365次方: %.2f\n", x, ans);printf("\n");}return 0;
}

 

 

任务七

#include<stdio.h>
int main()
{double c,f;while(scanf("%lf",&c)!=EOF){f=1.8*c+32;printf("摄氏度c=%.2f时，华氏度f=%.2f",c,f);printf("\n");}return 0;    
}

 

任务八

#include<stdio.h>
#include<math.h> 
int main()
{double s,area;int a,b,c;while(scanf("%d%d%d",&a,&b,&c)!=EOF){s=0.5*(a+b+c);area=sqrt(s*(s-a)*(s-b)*(s-c));printf("a=%d,b=%d,c=%d,area=%.3f",a,b,c,area);printf("\n");return 0;    }
}