2020年的MATLABR2009b安装方法

对一个新知识做程序设计，在网络上的MATLAB代码拿到手后总有一个熟悉的过程。但是如果因为代码中包含大量的已经被新版MATLAB淘汰的函数，而且其中一些函数的替代函数与之迥然不同，就会手足无措。

因此有必要再装一个老版本的MATLAB。

对于配置比较低的机器，比如学霸本和寨板，内存小又没有SSD，更是跑不动最新版本，

可以使用web版的付费用户除外

安装较新的版本还是建议综合机器的内存和性能来选择，因为计算速度在逐渐优化提升。

MATLAB是允许在一台机器上存在多个已激活的版本的。在维基上有MATLAB各版本的更新内容（https://en.wikipedia.org/wiki/MATLAB）。其中从R2009a开始适配Win7，再之前的版本我不知道会不会和我的Win10有兼容问题。R2009a在更改高DPI兼容性后字体还是有锯齿感，不过R2009b就显示得非常细腻了。由于内存占用不大（200M+），也建议一些寨板用户选择R2009b win32。其他比较推荐的版本有R2012b（界面升级）和R2014b（画图升级），还有1718这种有实时编辑器和新函数的，再往后的安装包太大了，SSD够大的用户可以考虑。

R2009a（v7.8）首次支持win7的32和64位版（32位建议至少1G内存）；

R2009b（有SP1）新增波浪号“~”运算符忽略函数调用的参数（这个还是挺有用的）；

R2010b（有SP1、SP2）添加了枚举（开始建议至少2G内存）；

R2011a新增rng函数控制随机数生成（也暗示着某些函数将要被淘汰了）；

R2012b（v8.0）菜单改成工具条界面，更好看了（office 2010风格）；

R2014b有中文，全面升级图形引擎（开始建议至少1G显存）；

R2015b美化了帮助文档，适配高分屏（2k+）；

R2016a加入实时编辑器（开始建议至少4G内存）

R2018a完善深度学习功能（开始建议至少8G内存）……

现在网上的方法已经不能照搬了，我的安装过程如下：

ed2k://|file|[矩陣實驗室].Mathworks.Matlab.R2009b.ISO- TBE.iso|5018411008|5257c67d63716027359974a7acabdd2b|h=XPUHZB4TK62OMPOCVVROCFLNB3ZMHGM6|

下载安装包和crack。

我系统是64位但要安装32位，所以进入win32文件夹再右击setup，属性-兼容性 选择windows 7，然后以管理员模式运行。

断开网络，选择离线模式，输入crack里的key。

我选择自定义安装方式，这样可以少安装一些用不到的工具箱，在选择文件关联页面我全部取消勾选，因为主力还是2018b。

安装完毕按照提示加载dat文件。此时注意，当年的dat文件早在2017年就过期了，所以最后一步要取消勾选立即打开MATLAB。

把下面这些文字保存成文本文档，重命名为license.lic，放到安装目录里license文件夹中（将里面原来的文件删除即可）。

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一点点界面美化：

对于高分屏用户，打开软件后可能会很模糊。所以在快捷方式右键，属性-兼容性-更改高DPI设置-替代缩放-应用程序。

在软件的Preferences中把Colors-Background改成淡绿色，Fonts改成YaHei Consolas Hybrid，这个字体可以把中文雅黑和英文等宽Consolas合在一起，比较美观。

两个版本都安装了，因为还是2018b版好用，而且运行手中的代码时，竟然还有新版本的新函数，还得把2018b版的函数拷出来用hh