说明： linux 图形化编程 GTK经典文档，对初学者有极大的参考价值，是一份不错的接口文档，其中集成文档，方便在编程时参考。 (linux classic GTK graphical programming documents, for beginners there is a great reference value, the interface is a good document, which integrates the document to make it easier to reference when programming.)
