摘要: String a = "hello "; String b = "world"; String c = a + b; String d = "hello world"; if(c==d){ System.out.println("相等"); }else{ System.out.println("不相 阅读全文
posted @ 2017-10-23 16:12 孤独的代码 阅读(190) 评论(0) 推荐(0) 编辑