HelloWorld/js如何判断浮点数为0.html at master · SmoothLatte/HelloWorld · GitHub

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<!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>基本数据类型转换</title>
<script language="javascript">
<!--begin hiding JavaScript
var aa="11";
var bb="22";
var zero="0.0";
var data = 0.0;
document.write("<br>"+data);
document.write("<br>"+String(data));
if(String(data) == zero)
{
	document.write("浮点数为零");
}
document.write("变量的初始情况：aa='11' bb='22'");
var result=Number(aa)+Number(bb);
document.write("<br>number(aa)+number(bb)------数值的运算结果为：",result);
var st=String(aa);
result=st+22;
document.write("<br>string(aa)+22------字符串aa与数字的运算结果为：",result);
var bo=Boolean(aa);
result=bo+bb;
document.write("<br>boolean(aa)+bb------布尔值与字符串bb的运算结果为：",result);
result=bo+22;
document.write("<br>boolean(aa)+22------布尔值与数字的运算结果为：",result);
//End hiding JavaScript-->
</script>
</head>
<body>
</body>
</html>