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网络安全笔记(Day Twelve)

Day Twelve 计算机网络参考模型 一、OSI七层参考模型 1、分层思想 交换机→防火墙→路由器→计算机 2、OSI参考分层( IP地址公网--------内网服务器) 概述:由于早期计算机厂商使用的私有的网络模型,由ISO(国际标准化组织)在1984年颁布了开放系统互联OSI参考模型,将网络分为7层 物理层:建

twelve

如何使小程序顶部动态显示文字 如果只是在对应文件的json中设置navigationBarTitleText很明显只会使页面顶部静态显示 可以在对应文件的js中使用wx.setNavigationBarTitle({title:''}) 动态内容可以赋值传入          

Paul is a project manager for an effort that requires twelve months

Paul is a project manager for an effort that requires twelve months. During the seventh, eighth, and ninth months he needs two individuals with special qualifications. The functional manager has promised that these individuals will be available two months

c语言课堂笔记 twelve november

数据类型分类 基本数据类型(内置。编译器自带的类型) 复合数据类型(多个内置类型组成的新类型):数组、结构体(struct)、union、enum 基本类型 int 短 short ⻓ long 整型。long long char float double Void类型:void*(万能指针):多态 二 定义变量 (注意事项:编码规范) 1 变

Twelve 类运算符重载

原文链接(点击原文链接获取更多学习干货): Twelve 类运算符重载 – 布尔博客http://blog.bools.cn/archives/1640 1.加号运算符重载 如果想要自定义类型进行加减操作,需要编写函数来进行重载。在成员函数或全局函数中写函数 函数名operator+(){} 1.成员函数的加号重载 class person

Financial Management

Larry graduated this year and finally has a job. He's making a lot of money, but somehow never seems to have enough. Larry has decided that he needs to grab hold of his financial portfolio and solve his financing problems. The first step is to figure

SasS 设计原则十二因素

Heroku 是业内知名的云应用平台,从对外提供服务以来,他们已经有上百万应用的托管和运营经验。其创始人 Adam Wiggins 根据这些经验,发布了一个“十二要素应用宣言(The Twelve-Factor App)”,这个设计原则对SaaS平台非常具有指导意义。 十二要素应用宣言 如今,软件通常会作为一种服务来交

数据分析 大数据之路 六 matplotlib 绘图工具

import pandas as pdimport numpy as npimport matplotlib.pyplot as plt# 用来正常显示中文标签plt.rcParams['font.sans-serif']=['SimHei'] # 用来正常显示负号plt.rcParams['axes.unicode_minus']=False # 读取本地 unrate.csv 文件unrate = pd.read_csv('unr

Financial Management

Problem Description Larry graduated this year and finally has a job. He’s making a lot of money, but somehow never seems to have enough. Larry has decided that he needs to grab hold of his financial portfolio and solve his financing problems. The first st