摘要： package（包）java.langInterfaces（接口）RunnableRepresents a command that can be executed.代表一个能被执行的命令。public interface（公有接口）Runnablejava.lang.RunnableKnown Indirect Subclasses（已知间接子类）AnimationDrawableAn object used to create frame-by-frame animations, defined by a series of Drawable objects, which can be u 阅读全文