为啥我自己多写一段 就不显示了呢？
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>什么是数组</title>
<script type="text/javascript">
var myarr=new Array(); //定义数组
myarr[0]=80;
myarr[1]=60;
myarr[2]=99;
document.write("第一个人的成绩是:"+myarr[0]);
document.write("第二个人的成绩是:"+myarr[1]);
document.write("第三个人的成绩是:"+myarr[2]);
var Myarr=new array();
Myarr[0]=80;
Myarr[1]=60;
Myarr[2]=99;
document.write("I person's credit is"+Myarr[0]);
document.write("II person's credit is"+Myarr[1]);
document.write("III person's credit is"+Myarr[2]);
</script>
</head>
<body>
</html>
