📄 9-18.htm

📁 javascript 的原代码,是一本书的代码

💻 HTM

字号:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
</head>

<body>
   <script language="javascript">
       var b1 = new Boolean(0);
	   var b2 = new Boolean(1);
	   var b3=  new Boolean(3.14);
	   var b4 = new Boolean("北京");
	   var b5 = new Boolean(null);
	   var b6=  new Boolean(NaN);
	   document.writeln("<pre>");
	      document.writeln(b1);
		  document.writeln(b2);
		  document.writeln(b3);
		  document.writeln(b4);
		  document.writeln(b5);
		  document.writeln(b6);
	   document.writeln("</pre>");
   </script>
</body>
</html>

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