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php学习笔记 PHP面向对象的程序设计 对象比数组更强大,不仅可以存储多个数据,还可以将函数存在对象中

代码如下:
/* PHP面向对象的程序设计
*
* PHP5
*
* 数组和对象:都属于PHP的复合类型(一个变量可以存储多个单元)
*
* 对象比数组更强大,不仅可以存储多个数据,还可以将函数存在对象中
*
* 对象的三大特性:封装、继承、多态
*
* 面向对象编程(oop) //符合软件工程中的 重用性 灵活性 扩展性
*
* 面向对象和面向过程之间的区别
*
* 最小的单位:函数 //面向过程
* 最小的单位:对象 //面向对象
*
* 什么是对象
近来,新浪管理层开始套现,公开消息披露,当年的MBO使得管理层意气风发地成为新浪第一大股东,可到今天,他们已经成为了第二大股东。股权比例相距倒是不大:和第一大股东FMR9.24%的比例只有0.1%的差距。但新浪管理层手上有约定出售股权的协议,如果算上这部分未来可能会抛售的股权,管理层就只剩下5.74%了。新浪的确有可能再次成为一个“无主的公司”。
  这就是新浪作为一家公司,未来的麻烦:盈利模型不清晰,无主的可能性又开始展现。
* 对象是一个实体
* 对象:
* 成员属性==变量//定义对象的外观和状态
* 成员方法==函数//定义对象的功能
*
* 什么是类
* 分类、类型、自定义类型
*
* 在类中定义这个类型的属性和方法
*
* 类和对象之间的一个关系
*
* 声明类-->实例化对象(创建对象)-->使用对象
*
*
* 最难得是如何设计出面向对象的程序,而不是面向对象的语法。
*
*/
?>

作者:代号极光
出处:http://zizhuyuan.cnblogs.com
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