zoukankan      html  css  js  c++  java
  • 页面缓冲显示正在加载图片

    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='images/ajaxloader.gif' /></div>");
            HttpContext.Current.Response.Flush();
            }

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

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

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  • 原文地址:https://www.cnblogs.com/xyangs/p/3860759.html
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