实验1
实验1
源代码
1 #include<math.h> 2 int main() 3 { 4 printf(" 0\n"); 5 printf("<H>\n"); 6 printf("I I\n"); 7 printf(" 0\n"); 8 printf("<H>\n"); 9 printf("I I\n"); 10 return 0; 11 }
1 #include<math.h> 2 int main() 3 { 4 printf(" 0 0\n"); 5 printf("<H> <H>\n"); 6 printf("I I I I\n"); 7 return 0; 8 }
1 #include<stdio.h> 2 #include<math.h> 3 int main() 4 { 5 double a, b, c; 6 scanf("%lf%lf%lf", &a, &b, &c); 7 if (a + b > c && a + c > b && b + c > a) 8 printf("能构成三角形\n"); 9 else printf("不能构成三角形\n"); 10 return 0; 11 }
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表示木有敲) : "); 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,如果去掉,则无法输入ans2,getchar()用于读取回车空格等
1 #include<stdio.h> 2 int main() 3 { 4 double x, y; 5 char c1, c2, c3; 6 int a1, a2, a3; 7 scanf("%d%d%d",&a1,&a2,&a3); 8 printf("a1 = %d, a2 = %d, a3 = %d\n", a1, a2, a3); 9 scanf("%c%c%c", &c1, &c2, &c3); 10 printf("c1 = %c, c2 = %c, c3 = %c\n", c1, c2, c3); 11 scanf("%lf%lf", &x, &y); 12 printf("x = %f, y = %lf\n", x, y); 13 return 0; 14 }
#include<stdio.h> int main() { int year; double n; n = 1000000000.0 / 31536000.0; if (n - (int)n >= 0.5) { year = (int)n + 1; } else year = (int)n; printf("10亿秒等于%d年\n", year); return 0; }
#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; }
#include<stdio.h> int main() { double C, F; while (scanf("%lf", &C) != EOF) { F = 9 * C / 5 + 32; printf("摄氏度c=%.2f", C); printf("华摄度F=%.2f", F); printf("\n"); } return 0; }
1 #include<stdio.h> 2 #include<math.h> 3 int main() 4 { 5 int a, b, c; 6 double area, s; 7 while (scanf("%d%d%d", &a, &b, &c) != EOF) 8 { s = (a + b + c) / 2; 9 area = sqrt(s * (s - a) * (s - b) * (s - c)); 10 printf("a=%d,b=%d,c=%d,area=%.3f", a, b, c, area); 11 printf("\n"); 12 }return 0; 13 }