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<div style="margin: 4px; padding: 8px; border: 1px solid gray; background: #EAEAEA; width: <?php echo $width+8; ?>px"> <div><font color="gray">如下进度条的动态效果由服务器端 PHP 程序结合客户端 JavaScript 程序生成。</font></div> <div style="padding: 0; background-color: white; border: 1px solid navy; width: <?php echo $width; ?>px"> <div id="progress" style="padding: 0; background-color: #FFCC66; border: 0; width: 0px; text-align: center; height: 16px"></div> </div> <div id="status"> </div> <div id="percent" style="position: relative; top: -30px; text-align: center; font-weight: bold; font-size: 8pt">0%</div> </div> |
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<script language="JavaScript"> function updateProgress(sMsg, iWidth) { document.getElementById("status").innerHTML = sMsg; document.getElementById("progress").style.width = iWidth + "px"; document.getElementById("percent").innerHTML = parseInt(iWidth / <?php echo $width; ?> * 100) + "%"; } </script> |
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<script language="JavaScript"> updateProgress("正在操作用户“<?php echo $user; ?>” ....", <?php echo min($width, intval($progress)); ?>); </script> <?php flush(); ?> |
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<?php if ('source' == $_GET['act']) { //查看源代码 show_source($_SERVER["SCRIPT_FILENAME"]); exit; } //end if set_time_limit(0); for ($i = 0; $i < 500; $i++) { $users[] = 'Tom_' . $i; } //end for $width = 500; //显示的进度条长度,单位 px $total = count($users); //总共需要操作的记录数 $pix = $width / $total; //每条记录的操作所占的进度条单位长度 $progress = 0; //当前进度条长度 ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "' target=_blank>http://www.w3.org/TR/xhtml1/DTD/transitional.dtd"> <html> <head> <title>动态显示服务器运行程序的进度条</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <meta name="Generator" content="JEdit"> <meta name="Author" content="Krazy Nio"> <style> body, div input { font-family: Tahoma; font-size: 9pt } </style> <script language="JavaScript"> <!-- function updateProgress(sMsg, iWidth) { document.getElementById("status").innerHTML = sMsg; document.getElementById("progress").style.width = iWidth + "px"; document.getElementById("percent").innerHTML = parseInt(iWidth / <?php echo $width; ?> * 100) + "%"; } //--> </script> </head> <body> <div style="margin: 4px; padding: 8px; border: 1px solid gray; background: #EAEAEA; width: <?php echo $width+8; ?>px"> <div><font color="gray">如下进度条的动态效果由服务器端 PHP 程序结合客户端 JavaScript 程序生成。</font></div> <div style="padding: 0; background-color: white; border: 1px solid navy; width: <?php echo $width; ?>px"> <div id="progress" style="padding: 0; background-color: #FFCC66; border: 0; width: 0px; text-align: center; height: 16px"></div> </div> <div id="status"> </div> <div id="percent" style="position: relative; top: -30px; text-align: center; font-weight: bold; font-size: 8pt">0%</div> </div> <?php flush(); //将输出发送给客户端浏览器 foreach ($users as $user) { // 在此处使用空循环模拟较为耗时的操作,实际应用中需将其替换; // 如果你的操作不耗时,我想你就没必要使用这个脚本了 :) for ($i = 0; $i < 10000; $i++) { ;; } ?> <script language="JavaScript"> updateProgress("正在操作用户“<?php echo $user; ?>” ....", <?php echo min($width, intval($progress)); ?>); </script> <?php flush(); //将输出发送给客户端浏览器,使其可以立即执行服务器端输出的 JavaScript 程序。 $progress += $pix; } //end foreach // 最后将进度条设置成最大值 $width,同时显示操作完成 ?> <script language="JavaScript"> updateProgress("操作完成!", <?php echo $width; ?>); </script> <?php flush(); ?> <input type="button" value="查看源码" onclick="document.location.href='<?php echo $_SERVER['PHP_SELF']; ?>?act=source'" /> </body> </html> |