所以我试图做一个“简单”的 php + javascript 拖放，这是我的代码：
<title>Web Editor</title>
<?php
mysql_connect("$host","$user","$pass");
mysql_select_db("$db");
if(isset($_POST['submit'])){
$name=$_FILES['file']['name'];
$temp=$_FILES['file']['tmp_name'];
move_uploaded_file($temp,"uploaded/".$name);
$url="http://www.bluejayke.com/edit/uploaded/$name";
}
?>
<?php
if(isset($_POST['submit'])){
mysql_query("INSERT INTO uploadedvideos(id,name,url) VALUES('','$name','$url')");
echo "</br>" . $name . " uploaded";
}
$query="SELECT * FROM uploadedvideos";
$result = mysql_query($query);
?>
<div class='wrapper' id='wrapper'>
<table cellpadding="0" cellspacing="0" border="1">
<tr>
<td style="width:400px; height:50px;"><form action="index.php" method="POST" enctype="multipart/form-data">
<input type="file" name="file">
<input type="submit" name="submit" value="Upload">
</form></td>
</tr>
<tr>
<td style="width:400px; height:500px;">
<div style="width:100%; height:100%; overflow:auto; ">
<script src="http://www.google.com/jsapi"></script>
<script>
google.load("jquery", "1");
</script>
<?php
while($row=mysql_fetch_array($result))
{
$id=$row['id'];
$name=$row['name'];
$url=$row['url'];
echo "<div style='position:absolute;cursor:pointer;' id='".$id."'><a href='javascript: click(\"$url\")'>$name</br><embed id='$id' src='$url' width='120' height='120' draggable='true' ondragstart='drag(event)'></embed></a><input type='button' id='delete' value='X' onclick='return Deleteqry($id)' /></div><br> ";
?>
<script type="text/javascript">
var dragging = false
$(function () {
var target<?php echo $id ?> = $('#<?php echo $id; ?>')
target<?php echo $id ?>.mousedown(function() { dragging<?php echo $id; ?> = true })
$(document).mouseup(function() { dragging<?php echo $id; ?> = false })
$(document).mousemove(function(e) {
if(dragging<?php echo $id; ?>){
target<?php echo $id ?>.css('left', e.pageX)
target<?php echo $id ?>.css('top', e.pageY)
}
})
})
</script>
<?php
}
?>
</div>
</table>
</div>
<div class='wactch' id='watching' height='480' width='720'>Loading..</div>
<script>
/*document.onmousemove=mouseMove;
function mouseMove(ev)
{
ev = ev || window.event;
var mousePos=mouseCords(ev);
}
function mouseCords(ev)
{
if(ev.pageX || ev.pageY)
{
return{x:ev.pageX,y:ev.pageY);
}
return
{
x:ev.clientX+document.body.scrollLeft-document.body.clientLeft, y:ev.clientY.document.body.scrollTop-document.body.clientTop
};
}
}*/
function Deleteqry(id)
{
if(confirm("Are you sure you want to delete this picture?")==true)
window.location="index.php?del="+id;
return false;
}
function allowDrop(ev)
{
ev.preventDefault();
}
function drag(ev)
{
ev.dataTransfer.setData("Text",ev.target.id);
}
function drop(ev)
{
ev.preventDefault();
var data=ev.dataTransfer.getData("Text");
ev.target.appendChild(document.getElementById(data));
}
window.onload=function()
{
click("http://www.bluejayke.com/edit/uploaded/dpnewslogo.png");
}
function click(url)
{
document.getElementById("watching").innerHTML='<embed src="'+url+'" width=720 height=480></embed>';
}
</script>
<?php
if($_GET['del']){
$delete_id=$_GET['del'];
mysql_query("DELETE FROM `uploadedvideos` WHERE `uploadedvideos`.`id` = $delete_id");
header("location: index.php");
}
?>
<style type="text/css">
.wrapper
{
width:500px;
overflow: hidden;
float: left;
}
#watching {
float: right;
}
.div1 {width:750px;height:120px;padding:10px;border:1px solid #aaaaaa; oveflow: hidden;}
</style>
重要的部分是在while循环中。这段代码的结果是我在 while 循环中创建的所有 div 都堆叠在一起，而我希望它们处于垂直线状结构中。有人对此有任何见解吗？我认为这与 div 的样式有关，但我不确定如何在保持拖放功能的同时解决它。