摘要: String a = "123.3445776";int i = a.indexOf(".");System.out.println(a.substring(0, i+3));System.out.println(a.substring(i+3, a.length())); 阅读全文
posted @ 2019-10-25 10:54 寒冰射手(电脑) 阅读(3491) 评论(0) 推荐(0) 编辑