THINKPHP2.0到3.0有哪些改进之处，thinkphp2.03.0
1.thinkphp中我们的入口文件写法，可能最后要加一个app::run();
3.0就完全不用了，你会发现不然会出现两次调用2.debug 我们开发的时候在2.0中我们一般都这样写，在conf下边的config.php
但是现在的3.0的申明方式就不一样了，我们就用define(‘APP_DEBUG',true);
这样来申明
3.在模板分配模板的时候，在2.0的时候我们会写这些$this->display(皮肤@模块：方法);
但是我们在3.0就是$this->display(皮肤：模块：方法)；
4.在我们调用模型的时候，我们可能会这样$user=D(‘user');这个在2.0是完全可以没问题的，但是
如果你写在3.0上，不好意思你写在UserModel.php模型方法根本调用不出来,这个肿么办呢？
$user->D(‘User')；不要忽略大小写
5.3.0的部署目录和2.0的是不同的大家要自己惨老看看
6.3.0的自定义目录或者路径都跟2.0的有区别 大家要对照的手册参考看一下，其实也可以自己写一下
今天就先写这么多，继续更新慢慢来~~
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