问题：
This may sound like a stupid question, since the very purpose of virtualenv is to this exactly: Installing some specific version of a package (in this case Django) inside the virtual environment.这听起来像是一个愚蠢的问题，因为virtualenv的真正目的就是：在虚拟环境中安装某个特定版本的包（在本例中为 Django）。 But it's exactly what I want to do, and I can't figure it out.但这正是我想要做的，我想不通。
I'm on Windows XP, and I created the virtual environment successfully, and I'm able to run it, but how am I supposed to install the Django version I want into it?我在 Windows XP 上，并且成功创建了虚拟环境，并且能够运行它，但是我应该如何将我想要的 Django 版本安装到其中？ I mean, I know to use the newly-created easy_install script, but how do I make it install Django 1.0.7?我的意思是，我知道要使用新创建的easy_install脚本，但是如何让它安装 Django 1.0.7？ If I do easy_install django , it will install the latest version.如果我执行easy_install django ，它将安装最新版本。 I tried putting the version number 1.0.7 into this command in various ways, but nothing worked.我尝试以各种方式将版本号1.0.7放入此命令中，但没有任何效果。
How do I do this?我该怎么做呢？