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页面缓冲显示正在加载图片

2024-07-13 10:23:34   223人阅读

一.代码部分

        public static void initJavascript()        {        HttpContext.Current.Response.Write(" <script language=JavaScript type=text/javascript>");        HttpContext.Current.Response.Write("var t_id = setInterval(animate,20);");        HttpContext.Current.Response.Write("var pos=0;var dir=2;var len=0;");        HttpContext.Current.Response.Write("function animate(){");        HttpContext.Current.Response.Write("var elem = document.getElementById(‘progress‘);");        HttpContext.Current.Response.Write("if(elem != null) {");        HttpContext.Current.Response.Write("if (pos==0) len += dir;");        HttpContext.Current.Response.Write("if (len>32 || pos>79) pos += dir;");        HttpContext.Current.Response.Write("if (pos>79) len -= dir;");        HttpContext.Current.Response.Write(" if (pos>79 && len==0) pos=0;");        HttpContext.Current.Response.Write("elem.style.left = pos;");        HttpContext.Current.Response.Write("elem.style.width = len;");        HttpContext.Current.Response.Write("}}");        HttpContext.Current.Response.Write("function remove_loading() {");        HttpContext.Current.Response.Write(" this.clearInterval(t_id);");        HttpContext.Current.Response.Write("var targelem = document.getElementById(‘loader_container‘);");        HttpContext.Current.Response.Write("targelem.style.display=‘none‘;");        HttpContext.Current.Response.Write("targelem.style.visibility=‘hidden‘;");        HttpContext.Current.Response.Write("}");        HttpContext.Current.Response.Write("</script>");        HttpContext.Current.Response.Write("<div id=loader_container><img src=http://www.mamicode.com/‘images/ajaxloader.gif‘ />
"); HttpContext.Current.Response.Flush(); }

二.加载完毕隐藏窗口，<body onl oad="remove_loading();">

添加样式以便于显示合理#loader_container {text-align:center; position:absolute; top:40%; width:100%; left: 0;}


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