/* */
#include <stdio.h>
main()
{
    char ch,nch;    /* */
    int count;    /* */
    int k;        /* */

    printf("Please input a string with a # in the end.\n");
    scanf("%c",&ch);    /* */
    while(ch != '#')    /* */
    {
        if(ch >= '0' && ch <= '9')
        {
            /* */
            count = ch-'0'+1;    /* */
            scanf("%c",&nch);    /* */
            for(k=0;k<count;k++)    /* */
                printf("%c",nch);
        }
        else
            printf("%c",ch);    /* */
        printf(" ");            /* */
        scanf("%c",&ch);        /* */
    }
    printf("#\n");                /* */
}


这是什么

输入一串字符以#号结束