摘要：
1）文本计数器<?php$countfile="/count.txt";//设置保存数据的文件if (!file_exists($countfile)){//判断文件是否存在exec( "echo 0 > $countfile");} $fp = fopen($countfile,"rw"); $length=filesize($countfile);$num = fgets($fp,$length); $num += 1; exec( "rm -rf $countfile");exec( " 阅读全文