实验1

实验任务1
task1_1

`#include <stdio.h>
int main()
{
printf(" o o \n");
printf(" \n");
printf("I I I I\n");

return 0;

} `

运行结果

task1_2

`#include <stdio.h>
int main()
{
printf(" o o \n");
printf(" \n");
printf("I I I I\n");

return 0;

} `

运行结果

实验任务2

`#include <stdio.h>

int main()
{
double a, b, c;

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


if(a+b>c&&c+a>b&&b+c>a==1)
    printf("能构成三角形\n");
else 
    printf("不能构成三角形\n");

return 0;

}`

运行结果

实验任务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;

}
`
运行结果

实验任务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 = %f, y = %lf\n",x, y);

return 0;

}
`

运行结果

实验任务5

`#include <stdio.h>

int main()
{
int year;

int seconds_in_year=365*24*3600;
year=(1e9/(double)seconds_in_year);

printf("10亿秒约等于%d年\n", year);
return 0;

}
`

运行结果

实验任务6

`#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);

}
return 0;

}`

运行结果

实验任务7

#include <stdio.h> int main () { double c,f; while (scanf("%lf",&c)!=EOF) { f=9.0/5.0*c+32; printf("摄氏度c=%.2f时，华氏度f=%.2f\n",c,f); } return 0; }
运行结果

实验任务8

`#include <stdio.h>

include <math.h>

int main ()
{
double a,b,c,s,area;
while(scanf ("%lf %lf %lf",&a,&b,&c)!=EOF)
{
s=(a+b+c)/2;
area=sqrt(s(s-a)(s-b)*(s-c));
printf("a=%.1f,b=%.1f,c=%.1f,area=%.3f\n",a,b,c,area);
}
return 0;
}
`
运行结果