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php-mvc模式（1）

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Jun 20, 2016 pm 12:59 PM

当学习php到这样一个阶段：发现其实做一些单一的功能模块并不难。但是一个系统往往有很多模块纠结在一起，当我们实际开发它的时候，会发现很多代码冗余，调用起来也不方便。而且代码越写越多的时候觉得越写越乱，最后把自己都搞的一团乱麻。

于是，想想能不能在这些模块上面建立一个可以统摄调用这些模块的方法。想实现什么功能就直接调用相应的模块，不用考虑具体的实现。

所以，上层发布指令，下层具体实现。这样思路就清晰了，问题没这么复杂了。分工明确是时代的趋势，也是代码的趋势。

模式和框架就是这样一个智慧。

现在，我开始追随前人的足迹，踏上mvc设计模式之旅，记录下这些日子的经历和体会。

首先感谢pengcheng大神的教程，代码都源自于他，我只是聊表自己的体会。

mvc设计模式：

m->model v->veiw c->controll

model负责数据的处理

这里就做简单的处理，直接返回一串str就当作是数据处理了吧~

view负责展示给客户端

view接受传过来的数据$data并且输出到前台，为了简单，就直接echo了~

controll负责统筹控制model和view的行为

controll中，生成model对象并调用获取数据的方法生成view对象并调用输出数据的方法

万事俱备，只欠调用了。接下来新建一个php调用控制器controll的show方法进行测试：

运行结果：

到此结束第一期~mvc并不是多么神秘难懂，一步一步慢慢解开它的面纱

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