摘要：
package cn.itcast.junit.fanshe; import java.io.IOException; import java.io.InputStream; import java.lang.reflect.InvocationTargetException; import jav 阅读全文
摘要：
lambda优化日志案例 public class Demo { public static void show_log(int i ,String msg){ if (i == 1){ System.out.print(msg); } } public static void main(Strin 阅读全文
摘要：
package demo06; import java.io.Serializable; public class Pserson implements Serializable { private static final long serialVersionUID = 1L; private S 阅读全文