要从外部调用jQuery插件内部的函数，请尝试运行以下代码。该代码以jQuery为例使用属性更新名称：
<html>
<head>
<script src = "https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script>
<script>
$.fn.person = function(prop) {
var defaults = $.extend({
name: 'Amit'
}, prop);
//在插件之外使用的方法
var person = {
changeName: function(name) {
defaults.name = name;
},
getName: function() {
return defaults.name;
}
};
return person;
};
//设置初始属性
var person = $('#person').person({
name: 'Sachin'
});
document.write('Initial name of person: ', person.getName());
person.changeName('Amit');
//打印新名称
document.write('<br>Changed name of person: ', person.getName());
</script>
</head>
<body>
<div id = "person">Changes done above!</div>
</body>
</html>输出结果
Initial name of person: Sachin
Changed name of person: Amit
Changes done above!