安装动态语言工具包:
help->new install software->work with 框输入 http://download.eclipse.org/technology/dltk/updates-dev/4.0-stable/
然后安装PDT：
help->new install software->work with 框输入 http://download.eclipse.org/tools/pdt/updates/latest/
安装动态语言工具包:
help->new install software->work with 框输入 http://download.eclipse.org/technology/dltk/updates-dev/4.0-stable/
然后安装PDT：
help->new install software->work with 框输入 http://download.eclipse.org/tools/pdt/updates/latest/
