實驗任務一
(1)
//列印一個字元小人
include <stdio.h>
int main()
{
printf(" o \n");
printf("
printf("I I\n");
return 0;
}
(2)
include <stdio.h>
int main()
{
printf(" o \n");
printf("
printf("I I\n");
printf(" o \n");
printf("<H>\n");
printf("I I\n");
return 0;
}
(3)
include <stdio.h>
int main()
{
printf(" o o \n");
printf("
printf("I I I I\n");
return 0;
}
實驗任務二
//從鍵盤上輸入三個資料作為三角形邊長,判斷其能否構成三角形
//構成三角形的條件:任意兩邊之和大於第三邊
include <stdio.h>
int main()
{
float a, b, c;
scanf_s("%f%f%f", &a, &b, &c);
if (a + b > c && a + c > b && b + c > a)
printf("能構成三角形\n");
else
printf("不能構成三角形\n");
return 0;
}
實驗任務三
include <stdio.h>
int main()
{
char ans1, ans2;
printf("每次課前認真預習、課後及時複習了沒? (輸入y或Y表示有,輸入n或N表示沒有) :");
ans1 = getchar();
getchar();
printf("\n動手敲程式碼實踐了沒? (輸入y或Y表示敲了,輸入n或N表示木有敲) : ");
ans2 = getchar();
if ((ans1 == 'y' || ans1 == 'Y') && (ans2 == 'y' || ans2 == 'Y'))
printf("\n羅馬不是一天建成的, 繼續保持哦:)\n");
else
printf("\n羅馬不是一天毀滅的, 我們來建設吧\n");
return 0;
}
如果去掉本行程式碼,程式在第二次輸入後會立刻結束,因此getchar()程式碼在這裡起到結束後的停頓緩衝作用。
//getchar()把末尾Enter鍵吃掉
實驗任務四
include<stdio.h>
include<stdlib.h>
int main()
{
double x, y;
char c1, c2, c3;
int a1, a2, a3;
//scanf("%d%d%d",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);
scanf("%lf%lf", &x, &y);
printf("x=%f,y=%lf\n", x, y);
system("pause");
return 0;
}
實驗任務五
include<stdio.h>
include<stdlib.h>
int main()
{
int year;
year = 1e9 / (60 * 60 * 24 * 365) + 0.5;
printf("10億秒約等於%d年\n", year);
system("pause");
return 0;
}
實驗任務六
(1)
include <stdio.h>
include <math.h>
int main()
{
double x, ans;
scanf("%lf", &x);
ans = pow(x, 365);
printf("%.2f的365次方: %.2f\n", x, ans);
return 0;
}
(2)
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;
}
實驗任務七
include <stdio.h>
include <stdlib.h>
int main()
{
double c, f;
while(scanf("%lf", &c) != EOF)
{
f=9*c/5+32;
printf("攝氏度c=%.2lf,華氏度f=%.2lf\n", c, f);
}
system("pause");
return 0;
}
。
實驗任務八
include <stdio.h>
include <math.h>
int main()
{
int a, b, c;
double area, s, s1;
while (scanf_s("%d%d%d", &a, &b, &c) != EOF)
{
s = (a + b + c) / 2.0;
s1 = s * (s - a) * (s - b) * (s - c);
area = sqrt(s1);
printf("a = %d, b = %d, c = %d, area = %.3f\n", a, b, c, area);
}
return 0;
}