Team:XMU-China/team

From 2014.igem.org

(Difference between revisions)

Revision as of 12:13, 1 October 2014

Team:XMU-China

Our team

Try to click on me in the Picture !

Team member

Jianxing Huang

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Xifeng Guo

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Chun Tang

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@@ Line 290: / Line 290: @@
         function backTop(){
          var diffY;
-         if (document.documentElement&&document.documentElement.scrollTop)
+         if (document.documentElement && document.documentElement.scrollTop)
             diffY = document.documentElement.scrollTop;
          else if (document.body)
-            diffY = document.body.scrollTop;
+            diffY = document.body.scrollTop;  //获取网页被卷去的高度
          else
            {/*Netscape stuff*/}
            //alert(diffY);
-         percent=.1*(diffY-lastScrollY);
+         percent=.1*(diffY-lastScrollY);  //获取滚动的百分比
          if(percent>0)
-		    percent = Math.ceil(percent);
+		    percent = Math.ceil(percent);  //百分比向上类型转换
          else
-		    percent = Math.floor(percent);
+		    percent = Math.floor(percent);  //百分比向下类型转换
          document.getElementById("gototop").style.top = parseInt(document.getElementById("gototop").style.top)+percent+"px";
          lastScrollY = lastScrollY+percent;
        }
-         window.setInterval("backTop()",50);
+         window.setInterval("backTop()",50); //这里的50表示50毫秒执行一次这个函数
       </script>
 	<div id="sponsor">