Platform来获取一些系统的路径和参数
在Eclipse的插件开发中，可以通过Platform来获取一些系统的路径和参数。?
假定Eclipse的安装路径为：D:/Java/eclipse?
创建的Workspace路径为：D:/Java/eclipse/workspace?
Platform.getNL()：zh_CN?
Platform.getWS()：win32?
Platform.getOS()：win32?
Platform.getOSArch()：x86?
Platform.getStateStamp()：155?
Platform.getUserLocation().getURL()：file:/D:/Profiles/windowsloginname/user/?
Platform.getInstallLocation().getURL()：file:/d:/Java/eclipse/?
Platform.getConfigurationLocation().getURL()：file:/d:/Java/eclipse/configuration/?
Platform.getInstanceLocation().getURL()：file:/D:/Java/eclipse/workspace/?
Platform.getLocation()：D:/Java/eclipse/workspace?
Platform.getLocation().toOSString()：D:/Java/eclipse/workspace?
Platform.getLogFileLocation()：D:/Java/eclipse/workspace/.metadata/.log?
Platform.getLogFileLocation().toOSString()：D:/Java/eclipse/workspace/.metadata/.log?
Platform.getPluginStateLocation(Platform.getPlugin("NamedPlugin"))：D:/Java/eclipse/workspace/.metadata/.plugins/NamedPlugin?
Platform.getPlugin("NamedPlugin").getStateLocation()：D:/Java/eclipse/workspace/.metadata/.plugins/NamedPlugin?
Platform.getPlugin("NamedPlugin").getDescriptor()：NamedPlugin_1.0.0?
Platform.getPlugin("NamedPlugin").getDescriptor().getLabel()：Plug-in Name?
Platform.getPlugin("NamedPlugin").getDescriptor().getProviderName()：ProviderName?
Platform.getPlugin("NamedPlugin").getDescriptor().getUniqueIdentifier()：NamedPlugin?
Platform.getPlugin("NamedPlugin").getDescriptor().getInstallURL()：platform:/plugin/NamedPlugin_1.0.0/?
Platform.getPlugin("NamedPlugin").getDescriptor().getInstallURL().getPath()：/plugin/NamedPlugin_1.0.0/
