php (十) 面向对象 抽象一个类
1. 类的声明
类的声明很简单, 只需要使用一个关键字class 后面加上一个自定义的类别名称, 并加上一对花括号就可以了。
示例:
[php]
class Person{
//成员属性
//成员方法
}
2. 成员属性
在类中直接声明变量就称为成员属性,可以在类中声明多个属性
示例:
[php]
class Person{
var $name;
var $age;
var $sex;
}
在类中声明成员属性时, 变量前面一定要使用一个关键字, 例如 pubilc 、private、static 等关键字来修饰, 一旦成员属性有其他的关键字来修饰就需要去掉“var”
示例:
[php]
class Person{
pubilc $name;
private $age;
static $sex;
}
3. 成员方法
在类中直接声明的函数就称为成员方法,可以在类中声明多个函数
示例:
[php]
class Person{
function run(){
//方法体
}
}

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