手记

JavaScript的练习代码,关于进阶篇的编程总结

<!DOCTYPE  HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>系好安全带,准备启航</title>
<script type="text/javascript">
  //通过javascript的日期对象来得到当前的日期,并输出。
    var mydate=new Date();
    var weekday=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];
    document.write(mydate);
    var myyear=mydate.getFullYear();
    var mymonth=mydate.getMonth();
    var week=weekday[mydate.getDay()];
    document.write(myyear+"年"+(mymonth+1)+"月"+mydate.getDate()+"日"+" "+week);   
  //成绩是一长窜的字符串不好处理,找规律后分割放到数组里更好操作哦
  var scoreStr = "小明:87;小花:81;小红:97;小天:76;小张:74;小小:94;小西:90;小伍:76;小迪:64;小曼:76";
  var scorearray=scoreStr.split(";");
  var count=0;
  for(var i=0; i<scorearray.length; i++){
      count=count+parseInt(scorearray[i].substr(indexOf(":")+1)); 
  }
  document.write("班级总成绩为:"+count);
  document.write("班级平均分为:"+count/scorearray.length);
  //从数组中将成绩撮出来,然后求和取整,并输出。
</script> 
</head>
<body>
</body>
</html> 
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