实验1

实验任务1

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;
}

include <stdio.h>

int main()
{
printf(" O O\n");
printf(" \n");
printf("I I I I\n");
return 0;
}
"C:\Users\38930\Pictures\Screenshots\屏幕截图 2025-10-07 203725.png"
实验2

include <stdio.h>

int main()
{
double a, b, c;
scanf_s("%lf%lf%lf", &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;
}



实验3

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'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;
}




实验4

include<stdio.h>

int main()
{
double x, y;
char c1, c2, c3;
int a1, a2, a3;

scanf_s("%d%d%d", &a1, &a2, &a3); 
printf("a1 = %d, a2 = %d, a3 = %d\n", a1, a2, a3);

scanf_s("%c%c%c", &c1, &c2, &c3);
printf("c1 = %c, c2 = %c, c3 = %c\n", c1, c2, c3);

scanf_s("%lf,%lf", &x, &y);
printf("x = %f, y = %lf\n", x, y);
return 0;

}

实验5

include <stdio.h>

int main()
{
int year;
long int second = 1000000000;
year = second / (365 * 24 * 60 * 60);
printf("10亿秒约等于%d年\n", year);
return 0;
}

实验6

include <stdio.h>

include <math.h>

int main()
{
double x, ans;

while(scanf_s("%lf", &x) != EOF)
{
    ans = pow(x, 365);
    printf("%.2f的365次方: %.2f\n", x, ans);
    printf("\n"); 
} 

return 0;

}

实验7

include <stdio.h>

include <math.h>

int main()
{
double C, F;

while (scanf_s("%lf", &C) != EOF)
{
	F = 9 * C / 5 + 32;
	printf("摄氏度c = %.2lf时，华氏度f = %.2lf", C, F);
	printf("\n");
}

return 0;

}

实验8

include <stdio.h>

include <math.h>

int a, b, c;
double area, S;
int main()
{
while (scanf_s("%d%d%d", &a, &b, &c) != EOF) {

	S = (a + b + c) / 2;
	area = sqrt(S * (S - a) * (S - b) * (S - c));
	printf("a=%d,b=%d,c=%d,area=%.3lf\n", a, b, c, area);
}
return 0;

}