JavaScript基本类型
?
一．布尔型
?
二．字符串型
?
三．数值型
?
四．函数
??
附源代码：
?
1．布尔型?
<!DOCTYPE HTML PUBLIC "-//W 3C//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>JavaScript Boolean型测试</title>
</head>
<body>
<div align="center">
<B>布尔型</B></div><br>
<table align="center" border="1" width="70%">
<tr>
<th>序号</th>
<th>表达式</th>
<th>值</th>
</tr>
<tr>
<td>1</td>
<td>+true</td>
<td><input id=res1></input></td>
</tr>
<tr>
<td>2</td>
<td>+false</td>
<td><input id=res2></input></td>
</tr>
<tr>
<td>3</td>
<td>parseInt(true)</td>
<td><input id=res3></input></td>
</tr>
<tr>
<td>4</td>
<td>parseInt(false)</td>
<td><input id=res4></input></td>
</tr>
<tr>
<td>5</td>
<td>true + ""</td>
<td><input id=res5></input></td>
</tr>
<tr>
<td>6</td>
<td>false + ""</td>
<td><input id=res6></input></td>
</tr>
<tr>
<td>7</td>
<td>new Boolean(true)</td>
<td><input id=res7></input></td>
</tr>
<tr>
<td>8</td>
<td>new Boolean(false)</td>
<td><input id=res8></input></td>
</tr>
<tr>
<td>9</td>
<td>new Boolean("true")</td>
<td><input id=res9></input></td>
</tr>
<tr>
<td>10</td>
<td>new Boolean("false")</td>
<td><input id=res10></input></td>
</tr>
<tr>
<td>11</td>
<td>true == "0"</td>
<td><input id=res11></input></td>
</tr>
<tr>
<td>12</td>
<td>false == "0"</td>
<td><input id=res12></input></td>
</tr>
<tr>
<td>