我没有收到任何 javascript 错误，代码只能正确呈现，但服务器仍然没有在页面上显示数据。请检查下面的代码。
<style type="text/css">
#marqueeborder {
color: #cccccc;
background-color: #EEF3E2;
font-family:"Lucida Console", Monaco, monospace;
position:relative;
height:20px;
overflow:hidden;
font-size: 0.7em;
}
#marqueecontent {
position:absolute;
left:0px;
line-height:20px;
white-space:nowrap;
}
.stockbox {
margin:0 10px;
}
.stockbox a {
color: #cccccc;
text-decoration : underline;
}
</style>
</head>
<body>
<div id="marqueeborder" onmouseover="pxptick=0" onmouseout="pxptick=scrollspeed">
<div id="marqueecontent">
<?php
// Original script by Walter Heitman Jr, first published on http://techblog.shanock.com
// List your stocks here, separated by commas, no spaces, in the order you want them displayed:
$stocks = "idt,iye,mill,pwer,spy,f,msft,x,sbux,sne,ge,dow,t";
// Function to copy a stock quote CSV from Yahoo to the local cache. CSV contains symbol, price, and change
function upsfile($stock) { copy("http://finance.yahoo.com/d/quotes.csv?s=$stock&f=sl1c1&e=.csv","stockcache/".$stock.".csv"); }
foreach ( explode(",", $stocks) as $stock ) {
// Where the stock quote info file should be...
$local_file = "stockcache/".$stock.".csv";
// ...if it exists. If not, download it.
if (!file_exists($local_file)) { upsfile($stock); }
// Else,If it's out-of-date by 15 mins (900 seconds) or more, update it.
elseif (filemtime($local_file) <= (time() - 900)) { upsfile($stock); }
// Open the file, load our values into an array...
$local_file = fopen ("stockcache/".$stock.".csv","r");
$stock_info = fgetcsv ($local_file, 1000, ",");
// ...format, and output them. I made the symbols into links to Yahoo's stock pages.
echo "<span class=\"stockbox\"><a href=\"http://finance.yahoo.com/q?s=".$stock_info[0]."\">".$stock_info[0]."</a> ".sprintf("%.2f",$stock_info[1])." <span style=\"";
// Green prices for up, red for down
if ($stock_info[2]>=0) { echo "color: #009900;\">↑"; }
elseif ($stock_info[2]<0) { echo "color: #ff0000;\">↓"; }
echo sprintf("%.2f",abs($stock_info[2]))."</span></span>\n";
// Done!
fclose($local_file);
}
?>
<span class="stockbox" style="font-size:0.6em">Quotes from <a href="http://finance.yahoo.com/">Yahoo Finance</a></span>
</div>
</div>
</body>
<script type="text/javascript">
// Original script by Walter Heitman Jr, first published on http://techblog.shanock.com
// Set an initial scroll speed. This equates to the number of pixels shifted per tick
var scrollspeed=2;
var pxptick=scrollspeed;
var marqueediv='';
var contentwidth="";
var marqueewidth = "";
function startmarquee(){
alert("hi");
// Make a shortcut referencing our div with the content we want to scroll
marqueediv=document.getElementById("marqueecontent");
//alert("marqueediv"+marqueediv);
alert("hi"+marqueediv.innerHTML);
// Get the total width of our available scroll area
marqueewidth=document.getElementById("marqueeborder").offsetWidth;
alert("marqueewidth"+marqueewidth);
// Get the width of the content we want to scroll
contentwidth=marqueediv.offsetWidth;
alert("contentwidth"+contentwidth);
// Start the ticker at 50 milliseconds per tick, adjust this to suit your preferences
// Be warned, setting this lower has heavy impact on client-side CPU usage. Be gentle.
var lefttime=setInterval("scrollmarquee()",50);
alert("lefttime"+lefttime);
}
function scrollmarquee(){
// Check position of the div, then shift it left by the set amount of pixels.
if (parseInt(marqueediv.style.left)>(contentwidth*(-1)))
marqueediv.style.left=parseInt(marqueediv.style.left)-pxptick+"px";
//alert("hikkk"+marqueediv.innerHTML);}
// If it's at the end, move it back to the right.
else{
alert("marqueewidth"+marqueewidth);
marqueediv.style.left=parseInt(marqueewidth)+"px";
}
}
window.onload=startmarquee;
</script>
</html>
下面是服务器显示的页面。
我已根据您的建议更新了屏幕截图，我也对 html 进行了更改，以检查子开发人员显示的内容