background:url(../images/1.jpg) no-repeat 100% 100%;
引用 不平铺 100%大小
filter:alpha(opacity=70); /*IE滤镜，透明度50%*/
-moz-opacity:0.7; /*Firefox私有，透明度50%*/
opacity:0.7;/*其他，透明度50%*/
设置透明度
cursor:pointer;
指针变手
div设置文字居中要先设置line-height
display:inline-block;
250px;
给span设置宽度
可以给div设置标识来获取数据
上传图片预览
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <form id="sc" action="shangchuan.php" target="hidden_frame" method="post" enctype="multipart/form-data"> <div id="yl" style="margin-left:0px; 144px; height:170px; background-size:144px 170px; background-image:url(images/%E6%B5%B7%E6%8A%A51101.jpg)"> <input type="file" name="file" style="144px; height:170px; float:left; opacity:0;" width="146" onchange="document.getElementById('sc').submit()"/> <img id="pic" style="display:none"/> </div> <input type="button" value="保存"/> </form> <iframe style="display:none;" name="hidden_frame" id="hidden_frame"> </iframe> </body> <script type="text/javascript"> //回调函数 function showimg(aa) { var l = document.getElementById("yl"); var p = document.getElementById("pic"); l.style.backgroundImage = "url("+aa+")"; p.setAttribute("src",aa); } </script> </html>
<?php //上传文件限制 if ((($_FILES["file"]["type"] == "image/gif")|| ($_FILES["file"]["type"] == "image/jpeg")|| ($_FILES["file"]["type"] == "image/pjpeg"))&& ($_FILES["file"]["size"] < 10000000)) { //文件上传是否出错 if ($_FILES["file"]["error"] > 0) { echo "上传出错: " . $_FILES["file"]["error"] . "<br />"; } else { //输出文件信息 /*echo "文件名: " . $_FILES["file"]["name"] . "<br />"; echo "类型: " . $_FILES["file"]["type"] . "<br />"; echo "大小: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />"; echo "临时路径: " . $_FILES["file"]["tmp_name"] . "<br />";*/ //判断文件是否已存在 if (file_exists("images/" . $_FILES["file"]["name"])) { echo "<script language='javascript'>alert('".$_FILES["file"]["name"]."已经存在！')</script>"; } else { //造存储路径 $filename = "images/" . $_FILES["file"]["name"]; //移动图片至保存路径，解决中文乱码问题 move_uploaded_file($_FILES["file"]["tmp_name"],iconv("UTF-8","gb2312",$filename)); echo "该文件存储在了: " . "images/" . $_FILES["file"]["name"]; echo "<script language='javascript'>parent.showimg('".$filename."')</script>"; } } } else { echo "上传失败"; } ?>
也可以用text返回
ajax分页
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <script src="jquery-1.11.2.min.js"></script> </head> <body> <table id="tb" width="100%" border="1" cellpadding="0" cellspacing="0"> </table> <div> <span id="shang">上一页</span> <span id="xia">下一页</span> <span>当前第：<input type="text" id="dq" value="1" />页</span> <span>总共：<span id="zys"></span>页</span> </div> </body> <script type="text/javascript"> $(document).ready(function(e) { FenYe(); ZYS(2); $("#shang").click(function(){ var dq = parseInt($("#dq").val()); if(dq>1) { $("#dq").val(dq-1); } else { $("#dq").val(1); } FenYe(); }) $("#xia").click(function(){ var dq = parseInt($("#dq").val()); if(dq<$("#zys").text()) { $("#dq").val(dq+1); } else { $("#dq").val($("#zys").text()); } FenYe(); }) }); //实现分页的方法 function FenYe() { var dq = $("#dq").val(); $.ajax({ url:"chuli.php", data:{page:dq}, dataType:"JSON", type:"GET", success: function(data){ var str = "<tr><td>代号</td><td>名称</td></tr>"; for(var k in data) { str=str+"<tr><td>"+data[k].Code+"</td><td>"+data[k].Name+"</td></tr>"; } $(tb).html(str); } }); } //根据每页几条数据求总页数 function ZYS(n) { $.ajax({ url:"zyschuli.php", data:{list:n}, type:"POST", dataType:"TEXT", success: function(data){ $("#zys").text(data); } }); } </script> </html>
<?php include("DBDA.php"); $db = new DBDA(); include("page.class.php"); $sql = "select count(*) from Nation"; $zs = $db->StrQuery($sql); $page = new Page($zs,2); $sqlsj = "select * from Info ".$page->limit; //echo $sqlsj; echo $db->JsonQuery($sqlsj);
<?php include("DBDA.php"); $db = new DBDA(); $sql ="select count(*) from Info"; $sj = $db->StrQuery($sql); $list = $_POST["list"]; $zys = 0; if($sj%$list==0) { $zys = $sj/$list; } else { $zys = floor($sj/$list) +1; } echo $zys;