代码非常简单，不再多加解释：
1 IWorkbench workbench = PlatformUI.getWorkbench();
2 IPerspectiveRegistry perspReg = workbench.getPerspectiveRegistry();
3 IPerspectiveDescriptor perspDesc = perspReg.findPerspectiveWithId("com.anotherPerspective.Id");
4 IWorkbenchWindow window = workbench.getActiveWorkbenchWindow();
5 if (window != null) {
6 IWorkbenchPage page = window.getActivePage();
7 page.setPerspective(perspDesc);
8 }