2013=字符串

#include <stdio.h>
#include <stdlib.h>

#define ERROR -1
#define OK 1

typedef struct
{
    char *ch;
    int length;
} heapstring;




typedef struct
{
    char item[100][80];
    int last;
}wordlisttype;



typedef int status;

status  init(heapstring &t)
{
    t.ch=(char *)malloc(sizeof(char));
    return 1;
}



status strassign(heapstring &t,char *chars)
{
    int i,j;
    char *c;
    init(t);
    if (t.ch)	free(t.ch);
    for (i=0,c=chars; *c; ++i,++c)
        if (!i)
        {
            t.ch=NULL;
            t.length =0;
        }
        else
            if (!(t.ch=(char *)malloc(i*sizeof(char))))
                return ERROR;
            else
            {
                for (j=0;j<i;j++)  t.ch[j]=chars[j];
                t.length =i;
            }

    return OK;
}

void outputstring(heapstring t)
{
    int i;
    for (i=0;i<t.length ;i++)
        printf("%c",t.ch[i]);
}

status extractword(heapstring t,wordlisttype &wd)
{
    int num=0,i=0,len=t.length ,label=-1,j=0;
    char p,q;
    p=' ';
    q=t.ch[i];
    while (i<len)
    {
        if (p==' '&&q!=' ')
            num++;
        p=q;
        q=t.ch[i];
        i++;
    }
    printf("
number=%d
",num);

    return 1;
}


main()
{
    heapstring str;
    char *ch=" 1001  this  is hhg  a ff book!----- ";
    wordlisttype wd;
    strassign(str,ch);
    outputstring(str);
    extractword(str,wd);


}