1、创建项目展示项目2、数据库设计4、首先写view视图jsp界面：创建了个文件分别是index.jsp主界面，login.jsp登录界面，insert.jsp注册界面<%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.

首先，说明我们是从sd卡里读文件，来播放文件！！1、效果图：提前工作，往sd卡里放音乐文件，如图：2、布局文件main.xml<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"

1、首先说一下canvas类：Class OverviewThe Canvas class holds the "draw" calls. To draw something, you need 4 basic components: A Bitmap to hold the pixels, a Canvas to host the draw calls (writing into t