#include<stdio.h>
#include<string.h>

int main()
{
    int i;
    char FileName_in[100];
    char FileName_out[100];
    FILE *fin,*fout;
    char line[200];
    for(i=1;i<100;i++)
    {
        sprintf(FileName_in,"%d.txt",i);
        sprintf(FileName_out,"S_%d.txt",i);
        fin = fopen("C:\\FileName_in", "r");
        fout = fopen("C:\\FileName_out", "w+");
        while(!feof(fin))
        {
            fgets(line,200,fin);
            if(strstr(line,"CA"))
                fputs(line,fout);
        }
        fclose(fin);
        fclose(fout);        
    }
}

[ 本帖最后由 惜小君 于 2012-6-21 13:29 编辑 ]

程序目的是从1000个txt文件:1.txt,2.txt…………………………1000.txt中，分别找到含有“CA”的行，输出到S_1.txt,S_2.txt…………………………S_1000.txt中。



寻找达人

sprintf(FileName_in,"C:\\%d.txt",i);        sprintf(FileName_out,"C:\\S_%d.txt",i);        fin = fopen(FileName_in,"r");        fout = fopen(FileName_out, "w+");