#include

#include

#include

#include

#include

#include

#include

int is_in(char *s, char *c);

int main(int argc, char *argv[])

{

char prefix[] = “enter your string”;

char filepath[] = “enter your path”;

DIR *directory_pointer;

struct dirent *entry;

if((directory_pointer=opendir(filepath))==NULL)

printf( “Error opening \n “);

else

{

while((entry=readdir(directory_pointer))!=NULL)

{

if(is_in(entry->d_name,prefix)==1){

//printf(”%s\n”,entry-> d_name);

strcat(filename, filepath);

strcat(filename, entry->d_name);

printf(“%s\n”,filename);

}

}

closedir(directory_pointer);

}

return 0;

}

int is_in(char *s, char *c)

{

int i=0,j=0,flag=-1;

while(i

if(s[I] == c[j]){

i++;

j++;

}

else{

i=i-j+1;

j=0;

}

if(j==strlen( c )){

flag=1;

break;

}

}

return flag;

}

用一个is_in函数来比较指定字符串是否包含在文件名内，打印出符合条件的文件名即可。