Enumeration接口提供了一套标准的方法,为数据结构提供方法协议。 下面是一个使用的例子: //e is an object that implements the Enumeration interfacewhile (e.hasMoreElements()) {Object o= e.nextElement();System.out.println(o);} 实现该接口的
https://www.cnblogs.com/CQzhangyu/p/8227408.html http://www.mamicode.com/info-detail-2146477.html 题意:给定M=2m−1M=2m−1,我们称一个集合S是好的,当且仅当它满足:1.∀a∈S,a xor M∈S∀a∈S,a xor M∈S,2.∀a,b∈S,a and b∈S∀a,b∈S,a and b
文章目录 I 、Local Host Enumeration1.1 Basic local host/network profiling1.1.1 netstat II、Basic Linux profiling2.1 df I 、Local Host Enumeration 1.1 Basic local host/network profiling ifconfigro
今天写C#脚本,运行时报错,错误信息: InvalidOperationException: Collection was modified; enumeration operation may not execute. 然后定位到出错行,发现是foreach循环出错,记得之前遇到过,foreach...in...里不能有remove的,奈何写的时候又忘记了。 错误代码: foreach(
Testing for Account Enumeration and Guessable User Account IDWSTG-IDNT-04 Summary The scope of this test is to verify if it is possible to collect a set of valid usernames by interacting with the a