php $count_num=0; if(file_exists("counter.txt")) { $fp=fopen("counter.txt","r"); $counter_num=fgets($fp,9);//读取前八位数字 $count_num++; fclose($fp); } $fp=fopen("counter.txt","w"); fputs($fp,$count_num); fclose($fp); echo" hahaha $count_num hahah"; ?>这个每次显示的都是1 就算人工修改了txt也不行 php初学者 请问问题出在哪里?谢谢!!