试验2

#include <iostream>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char** argv) {
    int num;
    
    scanf("%d",&num);
    printf("2049%04d\n",num);
    
    scanf("%d",&num);
    printf("2049%04d\n",num);
    
    scanf("%d",&num);
    printf("2049%04d\n",num);
    
    return 0;
}

 1 #include <iostream>
 2 
 3 /* run this program using the console pauser or add your own getch, system("pause") or input loop */
 4 
 5 int main(int argc, char** argv) {
 6     int x=1234;
 7     float f = 123.456;
 8     double m = 123.456;
 9     char ch = 'a';
10     char a[] = "你好，世界";
11     
12     int y=3, z=4;
13     
14     printf("%d ,%d\n", y, z);
15     printf("y=%d, z=%d\n", y, z);
16     printf("%8d,%2d\n", x, x);
17     printf("%f, %8d, %8.1f, %0.2f, %.2e\n", f, f, f, f,f);
18     printf("%lf\n", m);
19     printf("%c\n", ch);
20     printf("%s\n%15s\n%10.5s\n%2.5s\n%.3s\n", a, a, a, a, a);
21     
22     return 0;
23 }

#include <iostream>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char** argv) {
    double x,y;
    char c1,c2,c3;
    int a1,a2,a3;
    
    
    scanf("%1d%1d%1d",&a1,&a2,&a3);
    printf("%d,%d,%d\n", a1, a2, a3);
    scanf("%c%c%c",&c1,&c2,&c3);
    printf("%c%c%c\n", c1, c2, c3);
    scanf("%lf,%lf",&x,&y);
    printf("%f,%lf\n",x,y);

    return 0;
}

#include <iostream>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char** argv) {
    char ans1, ans2;
    
    printf("复习了没？（输入y或Y表示复习了，输入n或N表示没有复习）：");
    ans1 = getchar();
    getchar(); //消除回车键对输入的影响 
    printf("\n动手敲代码了吗？（输入y或Y表示敲了，输入n或N表示没有敲）：");
    ans2 = getchar();
    
    if((ans1=='y'||ans1=='Y')&&(ans2=='y'||ans2=='Y'))
      printf("\nROME CITY was not  built in one single day.\n");
    else 
      printf("\nROME CITY was not destoryed in one single day.\n");
            
     
    return 0;
}

 1 #include <iostream>
 2 
 3 /* run this program using the console pauser or add your own getch, system("pause") or input loop */
 4 
 5 int main(int argc, char** argv) {
 6     char x;
 7     
 8     x = getchar();
 9     
10     if(x<='9'&&x>='0')
11       printf("%c是数字字符\n",x);
12    else if((x<='z'&&x>='a')||(x<='Z'&&x>='A'))
13       printf("%c是字母字符\n",x);
14    else
15       printf("%c是其他字符\n",x);
16      
17     return 0;
18 }

 1 #include <iostream>
 2 #include <math.h>
 3 /* run this program using the console pauser or add your own getch, system("pause") or input loop */
 4 
 5 int main(int argc, char** argv) {
 6    int n,s,q;
 7    while(1){
 8    
 9    scanf("%d",&n);
10    q = pow(2,n);
11    s = 2*(1-q)/(1-2)+1;
12    printf("n=%d时,sum=%d\n",n,s);
13 }
14     return 0;
15 }

 1 #include <iostream>
 2 #include <math.h>
 3 /* run this program using the console pauser or add your own getch, system("pause") or input loop */
 4 
 5 int main(int argc, char** argv) {
 6  int col, line, n, m;
 7  line = 1;
 8  while(line <= 5){
 9      n = 2*(6-line)-1;
10     m = (line-1)*4;
11     
12          col = 1;
13          while(col <= m){
14          printf(" ");
15          col++;
16       }
17         col = 1;
18          while(col <= n){
19          printf(" O  ");
20          col++;
21       }
22       printf("\n");
23           col = 1;
24          while(col <= m){
25          printf(" ");
26          col++;
27       }
28          col = 1;
29           while(col <= n){
30          printf("<H> ");
31          col++;
32       }
33       printf("\n");
34           col = 1;
35          while(col <= m){
36          printf(" ");
37          col++;
38       }
39           col = 1;
40          while(col <= n){
41          printf("I I ");
42          col++;
43       }     
44      printf("\n");
45      
46       line++;
47  }
48     return 0;
49 }

posted on 2021-03-28 18:56 wyfaa 阅读(110) 评论(4) 收藏举报