实验任务1
1 #include <stdio.h.>
2 #include <stdlib.h>
3 #include <time.h>
4
5 #define N 5
6 #define R1 586
7 #define R2 701
8
9 int main()
10 {
11 int number;
12 int i;
13
14 srand(time(0));
15
16 for (i = 0; i < N; ++i)
17
18 {
19 number = rand() % (R2 - R1 + 1) + R1;
20 printf("20228330%04d\n", number);
21
22
23 }
24 return 0;
25
26 }
问题1：生成586-701的随机整数
问题2：利用系统时间为随机种子，rand（）函数生成586-701的随机整数，打印出尾号586-701的五个学号。
实验任务2
1 #include <stdio.h>
2
3 int main()
4 {
5 double x, y;
6 char c1, c2, c3;
7 int a1, a2, a3;
8
9 scanf("%d%d%d",&a1 ,&a2,&a3);
10 printf("a1=%d,a2=%d,a3=%d\n", a1, a2, a3);
11 scanf(" %c %c %c", &c1, &c2, &c3);
12 printf("c1=%c,c2=%c,c3=%c\n", c1, c2, c3);
13 scanf("%lf %lf", &x, &y);
14 printf("x=%f,y=%f\n" ,x, y);
15
16 return 0;
17
18 }
实验任务3
task3_1.c
1 #include <stdio.h>
2 #include <math.h>
3
4 int main() {
5
6 double x, ans;
7
8 scanf_s("%lf",&x);
9
10 ans = pow(x, 365);
11 printf("%.2f的365次方:%.2f\n",x,ans);
12
13 return 0;
14
15 }
task3_2.c
1 #include <stdio.h>
2 #include <math.h>
3
4 int main() {
5
6 double x, ans;
7 while (scanf_s("%lf", &x) != EOF)
8 {
9 ans = pow(x, 365);
10 printf("%.2f的365次方:%.2f\n", x, ans);
11 printf("\n");
12
13 }
14 return 0;
15
16 }
task3_3.c
1 #include <stdio.h>
2 int main() {
3
4 double c,f;
5 while (scanf_s("%lf", &c) != EOF) {
6 f = 9 / 5 * c + 32;
7 printf("摄氏度c=%0.2lf,", c);
8 printf("华氏度f=%0.2lf\n", f);
9
10 }
11 return 0;
12
13 }
实验任务4
1 #include <stdio.h>
2
3 int main() {
4
5 char sign;
6
7 while (scanf_s("%c", &sign) != EOF) {
8 getchar();
9
10 if (sign == 'r')
11 {
12 printf("stop!\n");
13
14 }
15 else if (sign == 'g') {
16 printf("go go go\n");
17 }
18 else if (sign == 'y')
19 {
20 printf("wait a minute\n");
21
22 }
23 else
24 {
25 printf("something must be wrong...\n");
26 }
27 }
28 return 0;
29 }
实验任务5
1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <time.h>
4 int main()
5 {
6 int lucky_day, i=1, j;
7 printf("猜猜2023年4月哪一天会是你的lucky day\n");
8 printf("开始咯，你有三次机会，猜吧（1-30）：");
9 scanf_s("%d", &j);
10
11 srand(time(0));
12 lucky_day = rand() % (30 - 1 + 1) + 1;
13
14 while(i<=3)
15 {
16 if (j == lucky_day)
17 {
18 printf("哇猜中了");
19 i = 5;
20 }
21 else
22
23 { i++;
24 if (j < lucky_day)
25 {
26 if (i == 4)
27 {
28 printf("次数用完啦，偷偷告诉你：4月，你的lucky day 是%d", lucky_day);
29 exit(0);
30 }
31 else
32 {
33 printf("你猜的日期早了,你的lucky day还没到呢\n");
34 printf("再猜（1-30）:");
35 }
36
37 }
38 else
39 {
40 if (i == 4)
41 {
42 printf("次数用完啦，偷偷告诉你：4月，你的lucky day 是%d", lucky_day);
43 exit(0);
44 }
45 else
46 {
47 printf("你猜的日期晚了，你的lucky day已经过啦\n");
48 printf("再猜（1-30）：");
49 }
50 }
51 scanf_s("%d", &j);
52
53 }
54
55 }
56 return 0;
57 }
58
实验任务6
1 #include <stdio.h>
2
3 int main()
4 {
5 int line, column;
6
7 for (line=1; line <= 9; line++)
8 {
9 for (column=1; column<=line; column++)
10 {
11 printf("%dx%d=%d", line, column,line*column);
12 printf("\t");
13 }
14 printf("\n");
15 }
16
17 return 0;
18 }
实验任务7
1 #include <stdio.h>
2
3 int main()
4 {
5 int line, i ,j,k;
6 scanf_s("%d", &line);
7 for (i = 1; i <= line; i++)
8 {
9 for (k = 1; k <= i - 1; k++)
10 {
11 printf("\t");
12 }
13 for (j = 1; j <= 2 * line - 1-2*(i-1); j++)
14 {
15 printf(" o ");
16 printf("\t");
17 }
18 printf("\n");
19 for (k = 1; k <= i - 1; k++)
20 {
21 printf("\t");
22 }
23 for (j = 1; j <= 2 * line - 1 - 2 * (i - 1); j++)
24 {
25 printf("<H>");
26 printf("\t");
27 }
28 printf("\n");
29 for (k = 1; k <= i- 1; k++)
30 {
31 printf("\t");
32 }
33 for (j = 1; j <= 2 * line - 1 - 2 * (i - 1); j++)
34 {
35 printf("I I");
36 printf("\t");
37 }
38 printf("\n");
39 }
40 return 0;
41 }
标签：include,int,scanf,12,实验,printf,main From： https://www.cnblogs.com/shaobky/p/17231424.html