C/C++小写数字转换成大写数字

1. #include<stdio.h>
2. void main()
3. {
4. double x,y;
5. char *ch[]={"零","壹","贰","叁","肆","伍","陆","柒","捌","玖"};
6. char *ch1[]={"拾","佰","仟","万","拾","佰","仟","亿"};
7. char num[256];
8. long i,n,j,m,y1;
9. printf("input:");
10. scanf("%lf",&x);
11. n=(long)x;/*得整数部分*/
12. y=x-n;/*得小数部分*/
13. for(i=0;n!=0;i++)
14.   {
15.   num[i]=(char)(n%10);
16.   n/=10;
17.   }
18. m=i;
19. num[i]='.';
20. for(y=y*10;(long)((y-(long)y)*10);) /*如果小数位还是有数(非0)循环继续*/
21.     y*=10;/*小数转化为整数如0.11111转为11111.00...*/
22. y1=(long)y;
23. for(i=m+1;y1!=0;i++)
24.     {num[i]=(char)(y1%10);
25.       y1=y1/10;}/*取各位上的数字*/
26. for(n=0;;n++)
27.   {
28.     if(num[n]=='.')
29.       {
30.       for(j=n-1;j>=0;j--)/*判断是否是万位,亿位..如是再判断是否是0如是就不输出零.*/
31.           {
32.           if(m<=5)
33.             if(m==5&&(int)num[j]==0)
34.               ;
35.             else
36.                 printf("%s",ch[(int)num[j]]);/*输出大写壹..*/
37.           else
38.             if(m%4==0&&(int)num[j]==0)
39.                   ;
40.             else
41.               printf("%s",ch[(int)num[j]]);
42.           if(m>=2)
43.             {printf("%s",ch1[m-2]);/*输出拾佰仟..如有2位就输出拾*/
44.               m=m--;}
45.           }
46.       printf("点");
47.       break;
48.       }
49.   }
50.   for(i=i-1;num[i]!='.';i--)
51.     printf("%s",ch[(int)num[i]]);/*输出小数部分*/
52. }  

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