摘要: int a = 10; int b = 20; a+=b; //a = a+b a-=b; //a = a-b System.out.println(a); //字符串连接符 + , String System.out.println(""+a+b); System.out.println(a+b+ 阅读全文
posted @ 2022-02-23 14:37 拿铁三分糖 阅读(157) 评论(0) 推荐(0)
摘要: 1.逻辑运算符//逻辑运算符 public class Demo03 { public static void main(String[] args) { //与 (and) 或 (or) 非 (取反) boolean a = true; boolean b = false; System.out. 阅读全文
posted @ 2022-02-23 14:36 拿铁三分糖 阅读(38) 评论(0) 推荐(0)