<"/home/wzy/test/sort.txt"; 
 
readFileByLine($filename); 

#include <stdio.h> 
#include <stdlib.h> 
#include <string.h> 
 
#define LEN 1024 
 
int main(void) 
{ 
  char filename[LEN], buf[LEN]; 
  FILE *fp; 
  int len; 
 
  scanf("%s", filename); 
 
  fp = fopen(filename, "r"); 
 
  if (fp == NULL) exit(-1); 
 
  while (fgets(buf, LEN, fp) != NULL) { 
    len = strlen(buf); 
    buf[len - 1] = '\0';  // 去掉换行符 
 
    printf("%s\n", buf); 
  } 
 
  return 0; 
}