• 根据样式创建内嵌页面


      
    <!DOCTYPE html> <html lang="en" xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8" />

        <meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
        <meta http-equiv="Cache" content="no-cache">
        <meta http-equiv="Pragma" content="no-cache" />
        <meta http-equiv="Expires" content="0" />

        <title>显示propertyDiv</title>
        <style>
        .app{
            font-size:30px;
            font-family:"微软雅黑";
            font-style:oblique;
            color:red;
            float:left;
            text-align:left;
        }
        </style>
    </head>
    <body style="text-align:center">
        <!-- <input type="button" value="显示UserAgent" onclick="showUserAgent()" /><br/> -->
        <div id="propertyDiv" />
        <script type="text/javascript">
            function showUserAgent() {
                
                var n = document.createElement("canvas")
                      , t = n.getContext("webgl") || n.getContext("experimental-webgl");
        
                var e = t.getExtension("WEBGL_debug_renderer_info");
                var r = t.getParameter(e.UNMASKED_RENDERER_WEBGL);
                var information = 'userAgent: ' + navigator.userAgent + 
                      '<br/> ' + window.screen.width +
                      '<br/>height: ' + window.screen.height +
    '<br/>render: ' + r;
            
           // 此处span中的class指定app为显示样式,控制information中的显示信息 document.getElementById("propertyDiv").innerHTML = "<span class='app'>" + information + "</span>"; } showUserAgent(); // js加载后会调用该函数 </script> </body> </html>

    以下Js代码修改Chrome获取的显卡信息:

    const getParameter = WebGLRenderingContext.getParameter;
    WebGLRenderingContext.prototype.getParameter = function(parameter) {
      // UNMASKED_VENDOR_WEBGL
      if (parameter === 37445) {
        return 'Intel Open Source Technology Center';
      }
      // UNMASKED_RENDERER_WEBGL
      if (parameter === 37446) {
        return 'Mesa DRI Intel(R) Ivybridge Mobile ';
      }
    
      return getParameter(parameter);
    };

    其中UNMASKED_RENDERER_WEBGL就是获得显卡信息的分类码。

    参考:修改显卡信息

    让页面不再进行缓存的方法,在html头中添加如下代码即可:

    	<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
    	<meta http-equiv="Cache" content="no-cache">
    	<meta http-equiv="Pragma" content="no-cache" />
    	<meta http-equiv="Expires" content="0" />
    

      

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  • 原文地址:https://www.cnblogs.com/gwzz/p/14684580.html
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