- 設G=(V,E)為一無向圖,G有尤拉路徑的充要條件是:G具有連通性而且恰有兩頂點的degree為奇數,其餘各頂點的degree皆為偶數。
尤拉路徑指的就是從圖中的某一個頂點出發,經過圖中的每個邊,而且每個邊只能經過一次。- 設G=(V,E)為一無向圖,G有尤拉迴路的充要條件是:G具有連通性而且所有的頂點degree均為偶數。
尤拉迴路指的就是這個路徑的起點和終點是同一點。
* Good Web-Sites :
軟體開發。程式設計。Web2.0。網路。科技。筆記。軟體
projectCreato和applicationCreator。我們只要在Command Line鍵入相對應的指令就可以Build好一個
Eclipse的專案了。
開始吧
projectCreator -eclipse 專案名稱
applicationCreator -eclipse 專案名稱 應用程式名稱
GWT建議我們的應用程式取名為xxx.xxx.client.應用程式名稱
Google Web Toolkit (GWT) makes it easier to write high-performance AJAX applications. You write your front end in the Java programming language and GWT compiles your source into highly optimized JavaScript. Writing web apps today is a tedious and error-prone process. You spend 90% of your time working around browser quirks, and JavaScript's lack of modularity makes sharing, testing, and reusing AJAX components difficult and fragile. It doesn't have to be that way.