<!DOCTYPE html>
<html>
<head>
<title>emailConfirm.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<!--<link type="text/css" href="https://www.jb51.net/article/styles.css">-->
<script type="text/javascript">
function isEmail()
{
var emailValue = document.getElementsByName("email")[0].value;
if(-1 == emailValue.indexOf("@"))
{
alert("请填写正确的Email地址");
}
else
{
alert("Ok");
}
}
</script>
</head>
<body>
<form>
email: <input type="text"><br/>
<input type="button" value="check">
</form>
</body>
</html>
自定义对象
前面讲函数的时候讲过一个例子，现在这里再讲一下这个例子：
复制代码 代码如下:
<!DOCTYPE html>
<html>
<head>
<title>objectTest.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<!--<link type="text/css" href="https://www.jb51.net/article/styles.css">-->
</head>
<body>
<script type="text/javascript">
//定义对象的一种方式：通过构造函数
function member(name, gender)
{
//属性
this.name = name;
this.gender = gender;
//方法
this.display = display;//指定member对象的display方法
}
function display()
{
var str = this.name + " : " + this.gender;
//这个display方法被谁使用了，此处的this就指向那个对象
document.writeln(str + "<br/>");
}
//生成对象
var m1 = new member("zhangsan", "male");
var m2 = new member("lisi", "male");
var m3 = new member("wangwu", "male");
var m4 = new member("wangfang", "female");
with(document)
{
write("输出属性","<br/>");
write(m1.name + ":" + m1.gender + "<br/>");
write(m2.name + ":" + m2.gender + "<br/>");
write(m3.name + ":" + m3.gender + "<br/>");
write(m4.name + ":" + m4.gender + "<br/>");
}
document.write("调用方法","<br/>");
m1.display();
m2.display();
m3.display();
m4.display();
</script>
</body>
</html>
小伙伴们是否对javascript中对象的概念和用法有了新的认识了呢，希望大家能够喜欢本文及本系列文章。
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