实验1
实验任务1
源代码
1 #include <stdio.h> 2 int main() 3 { 4 printf(" o\n"); 5 printf("<H>\n"); 6 printf("I I\n"); 7 8 system("pause"); 9 10 return 0; 11 12 }
1 #include <stdio.h> 2 int main() 3 { 4 printf(" o"); 5 printf(" o\n"); 6 printf("<H>"); 7 printf("<H>\n"); 8 printf("I I"); 9 printf("I I\n"); 10 11 system("pause"); 12 13 return 0; 14 15 }
运行截图
实验任务2
1 #include <stdio.h> 2 int main() 3 { 4 double a, b, c; 5 scanf_s("%lf%lf%lf", &a, &b, &c); 6 if (a + b > c && a + c > b && b + c > a) 7 printf("能构成三角形\n"); 8 else 9 printf("不能构成三角形\n"); 10 11 return 0; 12 }
实验任务3
1 #include <stdio.h> 2 int main() 3 { 4 char ans1, ans2; 5 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):"); 6 ans1 = getchar(); 7 getchar(); 8 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表示没有敲):"); 9 ans2 = getchar(); 10 if ((ans1 == 'y' || ans1 == 'Y') && (ans2 == 'y' || ans2 == 'Y')) 11 printf("\n罗马不是一天建成的,继续保持哦~ \n"); 12 else 13 printf("\n罗马不是一天毁灭的,我们来建设吧 \n"); 14 return 0; 15 }
问题:
出现两个getchar,将前一个清空可以赋值下一个
实验任务4
1 #include<stdio.h> 2 int main() 3 { 4 double x, y; 5 char c1, c2, c3; 6 int a1, a2, a3; 7 scanf_s("%d%d%d", &a1, &a2, &a3); 8 printf("a1 = %d, a2 = %d, a3 = %d\n", a1, a2, a3); 9 scanf_s("%c%c%c", &c1, &c2, &c3); 10 printf("c1 = %c, c2 = %c, c3 = %c\n", c1, c2, c3); 11 scanf_s("%lf,%lf", &x, &y); 12 printf("x = %f, y = %f\n\n", x, y); 13 return 0; 14 }
实验任务5
1 #include <stdio.h> 2 3 int main() 4 { 5 int year; 6 int a = 365 * 24 * 60 * 60; 7 long long s = 1000000000; 8 year = (int)((double)s / a + 0.5); 9 printf("10亿秒约等于%d年\n", year); 10 return 0; 11 }
实验任务6
1 #include <stdio.h> 2 #include <math.h> 3 4 int main() 5 { 6 double x, ans; 7 8 scanf_s("%lf", &x); 9 ans = pow(x, 365); 10 printf("%.2f的365次方:%.2f\n", x, ans); 11 12 return 0; 13 }
1 #include <stdio.h> 2 #include <math.h> 3 4 int main() 5 { 6 double x, ans; 7 8 while (scanf_s("%lf",&x)!=EOF) 9 { 10 ans = pow(x, 365); 11 printf("%.2f的365次方:%.2f\n", x, ans); 12 printf("\n"); 13 } 14 15 return 0; 16 }
实验任务7
1 #include <stdio.h> 2 int main() 3 { 4 double c, f; 5 while (scanf_s("%lf", &c) == 1) 6 { 7 f = (9.0/5)*c+32; 8 printf("摄氏度c=%.2f时,华氏度f=%.2f\n", c, f); 9 10 } 11 return 0; 12 }
实验任务8
1 #include <stdio.h> 2 #include <math.h> 3 4 int main() 5 { 6 double a, b, c, s, area; 7 while (scanf_s("%lf%lf%lf", &a, &b, &c) == 3) 8 { 9 s = (a + b + c) / 2; 10 area = sqrt(s * (s - a) * (s - b) * (s - c)); 11 printf("a=%.1f,b=%.1f,c=%.1f,area=%.3f\n", a, b, c, area); 12 } 13 14 return 0; 15 }