#include "stdafx.h"
#include "stdio.h"
#include "stdlib.h"

int main()
{
    FILE *fp;
    char s[160],t;
    int i,j,n,ni,ch;

    if((fp=fopen("file1.txt","w"))==NULL)
        {
            printf("haha\n");
            exit(0);
        }
//    else
        //{
            t=getchar();
            while(t!='#')
            {
                fputc(t,fp);putchar(t);
                t=getchar();
            }
        fclose(fp);

    //    }
        //fclose(fp);

//    if((fp=fopen("fi"")))
    fp=fopen("file1.txt","r");
    for(i=0;(ch=fgetc(fp)!=EOF);i++)
        {
            s[i]=ch;
        }

    ni=i;


    if((fp=fopen("file2.txt","w"))==NULL)
        {
            printf("hehe\n");
            exit(0);
        }
    else
        {
            ch=getchar();
            while(ch!='#')
            {
                fputc(ch,fp);putchar(ch);
                ch=getchar();
            }
        }
    fclose(fp);
    fp=fopen("file2.txt","r");
    for(i=ni;(ch=fgetc(fp)!=EOF);i++)
        {
            s[i]=ch;
        }
   
    n=i;
    for(i=0;i<n;i++)
    {
        for(j=i+1;j<n;j++)
        {
            if(s[i]>s[j])
            {
                t=s[i];
                s[i]=s[j];
                s[j]=t;
            }
        }
    }
    printf("\nfile3 文件内容是：\n");
   
    fp=fopen("file3.txt","w");
    for(i=0;i<n;i++)
    {
        fputc((s[i]),fp);
        putchar(s[i]);
    }
    fclose(fp);
    return 0;

}
本意是将file1.txt  file2.txt里面的字母从小到大排序输出到file3.txt中，但file3里面出现乱码