标签:doctype img har 状态码 图片 frame value pre 用户名
方法一:
<!DOCTYPE HTML> <html lang="zh-CN"> <head> <meta charset="UTF-8"> <title></title> </head> <body> <a href="./add.php">投票</a> </body> </html>
<?php $num = file_get_contents(‘./num.txt‘); $num = intval($num) + 1; file_put_contents(‘./num.txt‘, $num); header(‘HTTP/1.1 204 No Content‘);
<!DOCTYPE HTML> <html lang="zh-CN"> <head> <meta charset="UTF-8"> <title></title> </head> <body> <input type="button" value="投票" id="addBtn" /> <div id="request"></div> </body> <script type=""> var addBtn = document.getElementById("addBtn"); addBtn.onclick = function() { //创建img标签 var img = document.createElement("img"); //设置标签src属性 img.setAttribute("src", "add.php"); document.createElement("request").appendChild(img); }; </script> </html>
<!DOCTYPE HTML> <html lang="zh-CN"> <head> <meta charset="UTF-8"> <title></title> </head> <body> <form action="ret.php" method="post" target="request"> 用户名:<input type="text" name="uname" value="" /> 密码:<input type="password" name="upwd" value="" /> <input type="submit" name="submit" value="提交" /> </form> <iframe width="0" height="0" frameborder="0" name="request"></iframe> <div id="result"></div> </body> </html>
<?php $uname = !empty($_POST[‘uname‘]) ? $_POST[‘uname‘] : ‘‘; $upwd = !empty($_POST[‘upwd‘]) ? $_POST[‘upwd‘] : ‘‘; if($uname == ‘admin‘ && $upwd == ‘123456‘) { echo "<script>parent.document.getElementById(‘result‘).innerHTML=‘OK‘;</script>"; } else { echo "<script>parent.document.getElementById(‘result‘).innerHTML=‘NO‘;</script>"; }
1、iframe 2、flash实现,如swfupload 3、html5 (添加了文件读取api,使ajax上传文件成为可能。)
标签:doctype img har 状态码 图片 frame value pre 用户名
原文地址:http://www.cnblogs.com/jkko123/p/6352068.html