Ruvikm

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Daikon简介来自官方的翻译 Daikon 是动态检测可能不变量的一种实现;也就是说,Daikon不变量检测器会报告程序中可能存在的不变量。不变量是程序在某个点或某些点上所持有的性质;它们通常出现在断言语句、文档和形式规范中。不变量可用于程序理解和许多其他应用。例如:'x.field > abs(y)'; 'y = 2*x+3'; '数组 a 是有序的'; 对于所有列表对象 lst,'lst.next.prev = lst'; 对于所有树节点对象 n,'n.left.value < n.right.value'; 'p != null => p.content in myArray';等等。 这样的解释可能有点太晦涩，下面是省流版 Daikon是一个工具,它可以通过观察程序运行时的数据,自动发现一些潜在的规律或模式,我们把这些规律或模式称为不变量。比如说,你写了一个程序对一组数字从小到大排序。在排序之后,数组中的元素肯定是按升序排列的,即array ...

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进程相关搜索某一个进程(以进程Server为例)ps -ef | grep 进程名 # 根据进程名查看进程信息netstat -tunlp | grep 端口号 # 根据端口查看对应进程，查看占用8080端口的进程id 举例 ps -ef | grep Servernetstat -tunlp | grep 8080 关闭进程kill -9 端口号 举例：例如要关闭端口号为8088的进程 kill -9 8088 防火墙相关放行端口firewall-cmd --zone=public --add-port=4568/tcp --permanent # 开放4568端口firewall-cmd --zone=public --remove-port=4567/tcp --permanent #关闭4567端口firewall-cmd --reload # 配置立即生效 基本命令查看当前命令 pwd 用管理员权限打开文件管理器sudo nautilus chmod +x /etc/rc.d/init.d/xiaomiqiu_start.shcd /etc/rc.d/init.dc ...