C 打印菱形

1. #include "stdio.h"
   
2. void dis(int a,char c)/*打印菱形函数*/
   
3. {    
   
4.     int b=a/2;
   
5.     /* .......... 上三角 ..........*/
   
6.     for(int i=1;i<=a;i++)
   
7.     {        
   
8.         if(i%2==1)
   
9.         {            
   
10.             for(int j=0;j<b;j++)
    
11.                 {
    
12.                     printf("\t");
    
13.                 }
    
14.             for(int k=0;k<i;k++)
    
15.                 {
    
16.                     printf("%c\t",c);                    
    
17.                 }
    
18.             b--;
    
19.             printf("\n");
    
20.         }        
    
21.     }
    
22.     /*...........下三角.............*/
    
23.     int m=1;
    
24.     for(int i=a-2;i>0;i--)
    
25.         {            
    
26.             if(i%2==1)
    
27.             {
    
28.                 for(int j=0;j<m;j++)
    
29.                     {
    
30.                         printf("\t");
    
31.                     }
    
32.                 for(int k=i;k>0;k--)
    
33.                     {
    
34.                         printf("%c\t",c);                    
    
35.                     }
    
36.                 m++;
    
37.                 printf("\n");
    
38.             }
    
39.         }            
    
40. }    
    
41. int main(void)
    
42. {
    
43.     int d;
    
44.     char c;
    
45. 
    
46.     printf("请输入菱形的组成字符：");
    
47.     scanf("%c",&c);
    
48. 
    
49.     printf("请输入行数（奇数）：");
    
50.     scanf("%d",&d);
    
51. 
    
52.     while(d%2==0)
    
53.     {
    
54.         printf("输入的行数必须是奇数,请重新输入：");
    
55.         scanf("%d",&d);
    
56.     }
    
57.     dis(d,c);        
    
58. }