DI
1.概述
概述:Dependency Injection 依赖注入,给对象设置属性,曾经我们需要自己去创建 mapper 对象,才能调用,现在交给 spring 创建,并且使用 DI 注入,直接拿来用,程序员就可以更…
一.填空题
1.An Android project must be bulit before it is run,compiling the java source code(.java flises)into Java bytetcode(.class files)and the into .dex files
2.In Android an activity stores the code for a screen of an app, …