实验一

1
`

include<stdio.h>

int main()
{
printf(" 0 0\n");
printf(" \n");
printf("I I I I\n");
return 0;
}
![](https://img2024.cnblogs.com/blog/3409831/202403/3409831-20240317204305648-1323516699.png)

include<stdio.h>

int main()
{
printf(" O \n");
printf("\n");
printf("I I\n");
printf(" O \n");
printf("\n");
printf("I I\n");

return 0;

}
`

2
`#include<stdio.h>
int main()
{
float a, b, c;

scanf("%f%f%f", &a, &b, &c);

if (a + b > c && a + c > b && b + c > a)
	printf("能构成三角形\n");
else
	printf("不能构成三角形\n");


return 0;

}
`

3
`

include <stdio.h>

int main()
{
char ans1, ans2;
printf("每次课前认真预习，课后认真复习了没？(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 == 'y' || ans1 == 'Y') && (ans2 == 'y' || ans2 == 'Y'))
printf("\n罗马不是一天建成的, 继续保持哦:)\n");
else
printf("\n罗马不是一天毁灭的, 我们来建设吧\n");
return 0;
}
`

4
`#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("%lf%lf", &x, &y);
printf("x = %lf, y = %lf\n", x, y);
return 0;

5
}
`

#include <stdio.h> int main() { int year; year = 1000000000 / (365 * 24 * 60 * 60); year = year + 1; printf("10亿秒约等于%d年\n", year); return 0; }

6
`#include <stdio.h>

include <math.h>

include<stdlib.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");
}
system("pause");
return 0;
}
7#include <stdio.h>
int main()
{
double F, C;
while (scanf("%lf", &C) != EOF)
{
F = C * 9 / 5 + 32;
printf("摄氏度c=%.2lf时， 华氏度F=%.2lf\n", C, F);
}printf("\n");

return 0;

}
`

8
` #include<stdio.h>

include<stdlib.h>

include<math.h>

int main()
{
double s,S;
int a,b,c;
while(scanf("%d%d%d",&a,&b,&c)!=EOF)
{
s=(a+b+c)/2.0;
S=sqrt(s(s-a)(s-b)*(s-c));

     printf("a=%d,b=%d,c=%d,area=%.3f\n",a,b,c,S);
 }
 system("pause:");
  
 return 0;

}
`