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Javascript 添加一个居中的“;“正在加载…”;进度条中的消息_Javascript_Html - Fatal编程技术网

Javascript 添加一个居中的“;“正在加载…”;进度条中的消息

Javascript 添加一个居中的“;“正在加载…”;进度条中的消息,javascript,html,Javascript,Html,如何修改下面的代码,使我能够在进度条在后台运行时在框内添加一条以中心为中心的“加载…”消息?当进度条在DIV的背景中运行时,它会在框的中心显示LOADING…” <!DOCTYPE html> <html> <head> <script type="text/javascript"> var prg_width = 200; var progress_run_id = null; function progress() { va

如何修改下面的代码,使我能够在进度条在后台运行时在框内添加一条以中心为中心的“加载…”消息?当进度条在DIV的背景中运行时,它会在框的中心显示LOADING…”

<!DOCTYPE html>
<html>
<head> 

<script type="text/javascript">  
var prg_width = 200;  
var progress_run_id = null; 

function progress() {  
var node = document.getElementById('progress');  
    var w  = node.style.width.match(/\d+/);

    if (w == prg_width) {  
        clearInterval( progress_run_id ); 
        w = 0;
        alert("done")
    } else { 
        w = parseInt(w) + 5 + 'px';          
    } 
    node.style.width = w; 
}

function runit() { 
    progress_run_id = setInterval(progress, 30); 
} 

</script>  
</head>  
<body>  
        <div style="border: 1px solid #808080; width:200px; height:20px;">  
        <div id="progress" style="height:20px; width:0px; background-color:#DBDBDB;"/>  
        </div>  
        </div>
        <p><a href="javascript:runit()">Start</a></p>
</body>  
</html>

var prg_宽度=200;
var progress\u run\u id=null;
函数progress(){
var node=document.getElementById('progress');
var w=node.style.width.match(/\d+/);
如果(w==prg_宽度){
clearInterval(进度\运行\ id);
w=0;
警报(“完成”)
}否则{
w=parseInt(w)+5+'px';
} 
node.style.width=w;
}
函数runit(){
进度\运行\ id=设置间隔(进度,30);
} 


加载
    <div style="border: 1px solid #808080; width:200px; height:20px;">  
    <div id="progress" style="text-align: center; height:20px; width:0px; background-color:#DBDBDB;"/>

    <div style="  position: fixed;   left: 92px ">loading</div>


    </div>  
    </div>