一、网络安全面临的问题及威胁

（一）软件漏洞

我们使用的软件主要有三类：第一类，操作系统；第二类，商用软件；第三类，自主开发的应用软件。这些软件都不可能毫无缺陷和漏洞。尤其是第三类软件，是根据本单位需求而自行研发的，在设计上存在一定的缺陷，这些正是网络黑客进行进攻的目标。

（二）恶意攻击

恶意的攻击分为主动攻击和被动攻击。主动攻击是以各种方式有目的地破坏信息的有效性和完整性；被动攻击是在不影响网络正常工作的情况下进行截获、窃取、破译从而获得重要机密信息。

（三）受制于人

目前我国信息化建设中的核心技术缺乏技术支撑，依赖国外进口，比如CPU芯片、操作系统、数据库、网络设备等，这样就存在许多安全隐患，容易留下嵌入式病毒、隐性通道和可恢复的密码等漏洞。

二、网路安全防范措施

解决网络安全问题的关键在于建立和完善计算机网络信息安全防护体系。一般常用的网络安全技术主要有防火墙技术、入侵检测技术、访问控制技术和数据加密技术。
措施：安装防火墙、设置访问控制、采用数据加密、加强入侵检测、阻断传播途径、提高人员素质、

功能快捷键

撤销：Ctrl/Command + Z
重做：Ctrl/Command + Y
加粗：Ctrl/Command + B
斜体：Ctrl/Command + I
标题：Ctrl/Command + Shift + H
无序列表：Ctrl/Command + Shift + U
有序列表：Ctrl/Command + Shift + O
检查列表：Ctrl/Command + Shift + C
插入代码：Ctrl/Command + Shift + K
插入链接：Ctrl/Command + Shift + L
插入图片：Ctrl/Command + Shift + G
查找：Ctrl/Command + F
替换：Ctrl/Command + G

合理的创建标题，有助于目录的生成

直接输入1次#，并按下space后，将生成1级标题。
输入2次#，并按下space后，将生成2级标题。
以此类推，我们支持6级标题。有助于使用TOC语法后生成一个完美的目录。

如何改变文本的样式

强调文本 强调文本

加粗文本 加粗文本

标记文本

删除文本

引用文本

H₂O is是液体。

2¹⁰ 运算结果是 1024.

插入链接与图片

链接: link.

图片:

带尺寸的图片:

居中的图片:

居中并且带尺寸的图片:

当然，我们为了让用户更加便捷，我们增加了图片拖拽功能。

如何插入一段漂亮的代码片

去博客设置页面，选择一款你喜欢的代码片高亮样式，下面展示同样高亮的 代码片.

// An highlighted block
var foo = 'bar';

生成一个适合你的列表

项目
- 项目
  - 项目

项目1
项目2
项目3

计划任务
完成任务

创建一个表格

一个简单的表格是这么创建的：

项目	Value
电脑	$1600
手机	$12
导管	$1

设定内容居中、居左、居右

使用:---------:居中
使用:----------居左
使用----------:居右

第一列	第二列	第三列
第一列文本居中	第二列文本居右	第三列文本居左

SmartyPants

SmartyPants将ASCII标点字符转换为“智能”印刷标点HTML实体。例如：

TYPE	ASCII	HTML
Single backticks	`'Isn't this fun?'`	‘Isn’t this fun?’
Quotes	`"Isn't this fun?"`	“Isn’t this fun?”
Dashes	`-- is en-dash, --- is em-dash`	– is en-dash, — is em-dash

创建一个自定义列表

Markdown: Text-to-HTML conversion tool
Authors: John; Luke

如何创建一个注脚

一个具有注脚的文本。¹

注释也是必不可少的

Markdown将文本转换为 HTML。

KaTeX数学公式

您可以使用渲染LaTeX数学表达式 KaTeX:

Gamma公式展示 Γ(n)=(n−1)!∀n∈N\Gamma(n) = (n-1)!\quad\forall n\in\mathbb NΓ(n)=(n−1)!∀n∈N 是通过欧拉积分

Γ(z)=∫0∞tz−1e−tdt.\Gamma(z) = \int_0^\infty t^{z-1}e^{-t}dt\,. Γ(z)=∫0∞tz−1e−tdt.

你可以找到更多关于的信息 LaTeX 数学表达式here.

新的甘特图功能，丰富你的文章

Mon 06Mon 13Mon 20已完成进行中计划一计划二现有任务Adding GANTT diagram functionality to mermaid

关于 甘特图 语法，参考这儿,

UML 图表

可以使用UML图表进行渲染。 Mermaid. 例如下面产生的一个序列图：

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#sequencenumber{fill:#333}#mermaid-svg-DSxsTHRKYmILCuaV #crosshead path{fill:#333;stroke:#333}#mermaid-svg-DSxsTHRKYmILCuaV .messageText{fill:#333;stroke:#333}#mermaid-svg-DSxsTHRKYmILCuaV .labelBox{stroke:#ccf;fill:#ECECFF}#mermaid-svg-DSxsTHRKYmILCuaV .labelText,#mermaid-svg-DSxsTHRKYmILCuaV .labelText>tspan{fill:#000;stroke:none}#mermaid-svg-DSxsTHRKYmILCuaV .loopText,#mermaid-svg-DSxsTHRKYmILCuaV .loopText>tspan{fill:#000;stroke:none}#mermaid-svg-DSxsTHRKYmILCuaV .loopLine{stroke-width:2px;stroke-dasharray:2, 2;stroke:#ccf;fill:#ccf}#mermaid-svg-DSxsTHRKYmILCuaV .note{stroke:#aa3;fill:#fff5ad}#mermaid-svg-DSxsTHRKYmILCuaV .noteText,#mermaid-svg-DSxsTHRKYmILCuaV .noteText>tspan{fill:#000;stroke:none}#mermaid-svg-DSxsTHRKYmILCuaV .activation0{fill:#f4f4f4;stroke:#666}#mermaid-svg-DSxsTHRKYmILCuaV .activation1{fill:#f4f4f4;stroke:#666}#mermaid-svg-DSxsTHRKYmILCuaV .activation2{fill:#f4f4f4;stroke:#666}#mermaid-svg-DSxsTHRKYmILCuaV .mermaid-main-font{font-family:"trebuchet ms", verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-DSxsTHRKYmILCuaV .section{stroke:none;opacity:0.2}#mermaid-svg-DSxsTHRKYmILCuaV .section0{fill:rgba(102,102,255,0.49)}#mermaid-svg-DSxsTHRKYmILCuaV .section2{fill:#fff400}#mermaid-svg-DSxsTHRKYmILCuaV .section1,#mermaid-svg-DSxsTHRKYmILCuaV .section3{fill:#fff;opacity:0.2}#mermaid-svg-DSxsTHRKYmILCuaV .sectionTitle0{fill:#333}#mermaid-svg-DSxsTHRKYmILCuaV .sectionTitle1{fill:#333}#mermaid-svg-DSxsTHRKYmILCuaV .sectionTitle2{fill:#333}#mermaid-svg-DSxsTHRKYmILCuaV .sectionTitle3{fill:#333}#mermaid-svg-DSxsTHRKYmILCuaV .sectionTitle{text-anchor:start;font-size:11px;text-height:14px;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-DSxsTHRKYmILCuaV .grid .tick{stroke:#d3d3d3;opacity:0.8;shape-rendering:crispEdges}#mermaid-svg-DSxsTHRKYmILCuaV .grid .tick text{font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-DSxsTHRKYmILCuaV .grid path{stroke-width:0}#mermaid-svg-DSxsTHRKYmILCuaV .today{fill:none;stroke:red;stroke-width:2px}#mermaid-svg-DSxsTHRKYmILCuaV .task{stroke-width:2}#mermaid-svg-DSxsTHRKYmILCuaV .taskText{text-anchor:middle;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-DSxsTHRKYmILCuaV .taskText:not([font-size]){font-size:11px}#mermaid-svg-DSxsTHRKYmILCuaV .taskTextOutsideRight{fill:#000;text-anchor:start;font-size:11px;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-DSxsTHRKYmILCuaV .taskTextOutsideLeft{fill:#000;text-anchor:end;font-size:11px}#mermaid-svg-DSxsTHRKYmILCuaV .task.clickable{cursor:pointer}#mermaid-svg-DSxsTHRKYmILCuaV .taskText.clickable{cursor:pointer;fill:#003163 !important;font-weight:bold}#mermaid-svg-DSxsTHRKYmILCuaV .taskTextOutsideLeft.clickable{cursor:pointer;fill:#003163 !important;font-weight:bold}#mermaid-svg-DSxsTHRKYmILCuaV .taskTextOutsideRight.clickable{cursor:pointer;fill:#003163 !important;font-weight:bold}#mermaid-svg-DSxsTHRKYmILCuaV .taskText0,#mermaid-svg-DSxsTHRKYmILCuaV .taskText1,#mermaid-svg-DSxsTHRKYmILCuaV .taskText2,#mermaid-svg-DSxsTHRKYmILCuaV .taskText3{fill:#fff}#mermaid-svg-DSxsTHRKYmILCuaV .task0,#mermaid-svg-DSxsTHRKYmILCuaV .task1,#mermaid-svg-DSxsTHRKYmILCuaV .task2,#mermaid-svg-DSxsTHRKYmILCuaV .task3{fill:#8a90dd;stroke:#534fbc}#mermaid-svg-DSxsTHRKYmILCuaV .taskTextOutside0,#mermaid-svg-DSxsTHRKYmILCuaV .taskTextOutside2{fill:#000}#mermaid-svg-DSxsTHRKYmILCuaV .taskTextOutside1,#mermaid-svg-DSxsTHRKYmILCuaV .taskTextOutside3{fill:#000}#mermaid-svg-DSxsTHRKYmILCuaV .active0,#mermaid-svg-DSxsTHRKYmILCuaV .active1,#mermaid-svg-DSxsTHRKYmILCuaV .active2,#mermaid-svg-DSxsTHRKYmILCuaV .active3{fill:#bfc7ff;stroke:#534fbc}#mermaid-svg-DSxsTHRKYmILCuaV .activeText0,#mermaid-svg-DSxsTHRKYmILCuaV .activeText1,#mermaid-svg-DSxsTHRKYmILCuaV .activeText2,#mermaid-svg-DSxsTHRKYmILCuaV 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.doneCrit3{stroke:#f88;fill:#d3d3d3;stroke-width:2;cursor:pointer;shape-rendering:crispEdges}#mermaid-svg-DSxsTHRKYmILCuaV .milestone{transform:rotate(45deg) scale(0.8, 0.8)}#mermaid-svg-DSxsTHRKYmILCuaV .milestoneText{font-style:italic}#mermaid-svg-DSxsTHRKYmILCuaV .doneCritText0,#mermaid-svg-DSxsTHRKYmILCuaV .doneCritText1,#mermaid-svg-DSxsTHRKYmILCuaV .doneCritText2,#mermaid-svg-DSxsTHRKYmILCuaV .doneCritText3{fill:#000 !important}#mermaid-svg-DSxsTHRKYmILCuaV .activeCritText0,#mermaid-svg-DSxsTHRKYmILCuaV .activeCritText1,#mermaid-svg-DSxsTHRKYmILCuaV .activeCritText2,#mermaid-svg-DSxsTHRKYmILCuaV .activeCritText3{fill:#000 !important}#mermaid-svg-DSxsTHRKYmILCuaV .titleText{text-anchor:middle;font-size:18px;fill:#000;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-DSxsTHRKYmILCuaV g.classGroup text{fill:#9370db;stroke:none;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family);font-size:10px}#mermaid-svg-DSxsTHRKYmILCuaV g.classGroup text .title{font-weight:bolder}#mermaid-svg-DSxsTHRKYmILCuaV g.clickable{cursor:pointer}#mermaid-svg-DSxsTHRKYmILCuaV g.classGroup rect{fill:#ECECFF;stroke:#9370db}#mermaid-svg-DSxsTHRKYmILCuaV g.classGroup line{stroke:#9370db;stroke-width:1}#mermaid-svg-DSxsTHRKYmILCuaV .classLabel .box{stroke:none;stroke-width:0;fill:#ECECFF;opacity:0.5}#mermaid-svg-DSxsTHRKYmILCuaV .classLabel .label{fill:#9370db;font-size:10px}#mermaid-svg-DSxsTHRKYmILCuaV .relation{stroke:#9370db;stroke-width:1;fill:none}#mermaid-svg-DSxsTHRKYmILCuaV .dashed-line{stroke-dasharray:3}#mermaid-svg-DSxsTHRKYmILCuaV #compositionStart{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-DSxsTHRKYmILCuaV #compositionEnd{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-DSxsTHRKYmILCuaV #aggregationStart{fill:#ECECFF;stroke:#9370db;stroke-width:1}#mermaid-svg-DSxsTHRKYmILCuaV #aggregationEnd{fill:#ECECFF;stroke:#9370db;stroke-width:1}#mermaid-svg-DSxsTHRKYmILCuaV #dependencyStart{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-DSxsTHRKYmILCuaV #dependencyEnd{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-DSxsTHRKYmILCuaV #extensionStart{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-DSxsTHRKYmILCuaV #extensionEnd{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-DSxsTHRKYmILCuaV .commit-id,#mermaid-svg-DSxsTHRKYmILCuaV .commit-msg,#mermaid-svg-DSxsTHRKYmILCuaV .branch-label{fill:lightgrey;color:lightgrey;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-DSxsTHRKYmILCuaV .pieTitleText{text-anchor:middle;font-size:25px;fill:#000;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-DSxsTHRKYmILCuaV .slice{font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-DSxsTHRKYmILCuaV g.stateGroup text{fill:#9370db;stroke:none;font-size:10px;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-DSxsTHRKYmILCuaV g.stateGroup text{fill:#9370db;fill:#333;stroke:none;font-size:10px}#mermaid-svg-DSxsTHRKYmILCuaV g.statediagram-cluster .cluster-label text{fill:#333}#mermaid-svg-DSxsTHRKYmILCuaV g.stateGroup .state-title{font-weight:bolder;fill:#000}#mermaid-svg-DSxsTHRKYmILCuaV g.stateGroup rect{fill:#ECECFF;stroke:#9370db}#mermaid-svg-DSxsTHRKYmILCuaV g.stateGroup line{stroke:#9370db;stroke-width:1}#mermaid-svg-DSxsTHRKYmILCuaV .transition{stroke:#9370db;stroke-width:1;fill:none}#mermaid-svg-DSxsTHRKYmILCuaV .stateGroup .composit{fill:white;border-bottom:1px}#mermaid-svg-DSxsTHRKYmILCuaV .stateGroup .alt-composit{fill:#e0e0e0;border-bottom:1px}#mermaid-svg-DSxsTHRKYmILCuaV .state-note{stroke:#aa3;fill:#fff5ad}#mermaid-svg-DSxsTHRKYmILCuaV .state-note text{fill:black;stroke:none;font-size:10px}#mermaid-svg-DSxsTHRKYmILCuaV .stateLabel .box{stroke:none;stroke-width:0;fill:#ECECFF;opacity:0.7}#mermaid-svg-DSxsTHRKYmILCuaV .edgeLabel text{fill:#333}#mermaid-svg-DSxsTHRKYmILCuaV .stateLabel text{fill:#000;font-size:10px;font-weight:bold;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-DSxsTHRKYmILCuaV .node circle.state-start{fill:black;stroke:black}#mermaid-svg-DSxsTHRKYmILCuaV .node circle.state-end{fill:black;stroke:white;stroke-width:1.5}#mermaid-svg-DSxsTHRKYmILCuaV #statediagram-barbEnd{fill:#9370db}#mermaid-svg-DSxsTHRKYmILCuaV .statediagram-cluster rect{fill:#ECECFF;stroke:#9370db;stroke-width:1px}#mermaid-svg-DSxsTHRKYmILCuaV .statediagram-cluster rect.outer{rx:5px;ry:5px}#mermaid-svg-DSxsTHRKYmILCuaV .statediagram-state .divider{stroke:#9370db}#mermaid-svg-DSxsTHRKYmILCuaV .statediagram-state .title-state{rx:5px;ry:5px}#mermaid-svg-DSxsTHRKYmILCuaV .statediagram-cluster.statediagram-cluster .inner{fill:white}#mermaid-svg-DSxsTHRKYmILCuaV .statediagram-cluster.statediagram-cluster-alt .inner{fill:#e0e0e0}#mermaid-svg-DSxsTHRKYmILCuaV .statediagram-cluster .inner{rx:0;ry:0}#mermaid-svg-DSxsTHRKYmILCuaV .statediagram-state rect.basic{rx:5px;ry:5px}#mermaid-svg-DSxsTHRKYmILCuaV .statediagram-state rect.divider{stroke-dasharray:10,10;fill:#efefef}#mermaid-svg-DSxsTHRKYmILCuaV .note-edge{stroke-dasharray:5}#mermaid-svg-DSxsTHRKYmILCuaV .statediagram-note rect{fill:#fff5ad;stroke:#aa3;stroke-width:1px;rx:0;ry:0}:root{--mermaid-font-family: '"trebuchet ms", verdana, arial';--mermaid-font-family: "Comic Sans MS", "Comic Sans", cursive}#mermaid-svg-DSxsTHRKYmILCuaV .error-icon{fill:#522}#mermaid-svg-DSxsTHRKYmILCuaV .error-text{fill:#522;stroke:#522}#mermaid-svg-DSxsTHRKYmILCuaV .edge-thickness-normal{stroke-width:2px}#mermaid-svg-DSxsTHRKYmILCuaV .edge-thickness-thick{stroke-width:3.5px}#mermaid-svg-DSxsTHRKYmILCuaV .edge-pattern-solid{stroke-dasharray:0}#mermaid-svg-DSxsTHRKYmILCuaV .edge-pattern-dashed{stroke-dasharray:3}#mermaid-svg-DSxsTHRKYmILCuaV .edge-pattern-dotted{stroke-dasharray:2}#mermaid-svg-DSxsTHRKYmILCuaV .marker{fill:#333}#mermaid-svg-DSxsTHRKYmILCuaV .marker.cross{stroke:#333}:root { --mermaid-font-family: "trebuchet ms", verdana, arial;}#mermaid-svg-DSxsTHRKYmILCuaV {color: rgba(0, 0, 0, 0.75);font: ;}张三李四王五你好！李四, 最近怎么样?你最近怎么样，王五？我很好，谢谢!我很好，谢谢!李四想了很长时间, 文字太长了不适合放在一行.打量着王五...很好... 王五, 你怎么样?张三李四王五

这将产生一个流程图。:

#mermaid-svg-MJgb2q343BeJ9Hqv .label{font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family);fill:#333;color:#333}#mermaid-svg-MJgb2q343BeJ9Hqv .label text{fill:#333}#mermaid-svg-MJgb2q343BeJ9Hqv .node rect,#mermaid-svg-MJgb2q343BeJ9Hqv .node circle,#mermaid-svg-MJgb2q343BeJ9Hqv .node ellipse,#mermaid-svg-MJgb2q343BeJ9Hqv .node polygon,#mermaid-svg-MJgb2q343BeJ9Hqv .node path{fill:#ECECFF;stroke:#9370db;stroke-width:1px}#mermaid-svg-MJgb2q343BeJ9Hqv .node .label{text-align:center;fill:#333}#mermaid-svg-MJgb2q343BeJ9Hqv .node.clickable{cursor:pointer}#mermaid-svg-MJgb2q343BeJ9Hqv .arrowheadPath{fill:#333}#mermaid-svg-MJgb2q343BeJ9Hqv .edgePath .path{stroke:#333;stroke-width:1.5px}#mermaid-svg-MJgb2q343BeJ9Hqv .flowchart-link{stroke:#333;fill:none}#mermaid-svg-MJgb2q343BeJ9Hqv .edgeLabel{background-color:#e8e8e8;text-align:center}#mermaid-svg-MJgb2q343BeJ9Hqv .edgeLabel rect{opacity:0.9}#mermaid-svg-MJgb2q343BeJ9Hqv .edgeLabel span{color:#333}#mermaid-svg-MJgb2q343BeJ9Hqv .cluster rect{fill:#ffffde;stroke:#aa3;stroke-width:1px}#mermaid-svg-MJgb2q343BeJ9Hqv .cluster text{fill:#333}#mermaid-svg-MJgb2q343BeJ9Hqv div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family);font-size:12px;background:#ffffde;border:1px solid #aa3;border-radius:2px;pointer-events:none;z-index:100}#mermaid-svg-MJgb2q343BeJ9Hqv .actor{stroke:#ccf;fill:#ECECFF}#mermaid-svg-MJgb2q343BeJ9Hqv text.actor>tspan{fill:#000;stroke:none}#mermaid-svg-MJgb2q343BeJ9Hqv .actor-line{stroke:grey}#mermaid-svg-MJgb2q343BeJ9Hqv .messageLine0{stroke-width:1.5;stroke-dasharray:none;stroke:#333}#mermaid-svg-MJgb2q343BeJ9Hqv .messageLine1{stroke-width:1.5;stroke-dasharray:2, 2;stroke:#333}#mermaid-svg-MJgb2q343BeJ9Hqv #arrowhead path{fill:#333;stroke:#333}#mermaid-svg-MJgb2q343BeJ9Hqv .sequenceNumber{fill:#fff}#mermaid-svg-MJgb2q343BeJ9Hqv #sequencenumber{fill:#333}#mermaid-svg-MJgb2q343BeJ9Hqv #crosshead path{fill:#333;stroke:#333}#mermaid-svg-MJgb2q343BeJ9Hqv .messageText{fill:#333;stroke:#333}#mermaid-svg-MJgb2q343BeJ9Hqv .labelBox{stroke:#ccf;fill:#ECECFF}#mermaid-svg-MJgb2q343BeJ9Hqv .labelText,#mermaid-svg-MJgb2q343BeJ9Hqv .labelText>tspan{fill:#000;stroke:none}#mermaid-svg-MJgb2q343BeJ9Hqv .loopText,#mermaid-svg-MJgb2q343BeJ9Hqv .loopText>tspan{fill:#000;stroke:none}#mermaid-svg-MJgb2q343BeJ9Hqv .loopLine{stroke-width:2px;stroke-dasharray:2, 2;stroke:#ccf;fill:#ccf}#mermaid-svg-MJgb2q343BeJ9Hqv .note{stroke:#aa3;fill:#fff5ad}#mermaid-svg-MJgb2q343BeJ9Hqv .noteText,#mermaid-svg-MJgb2q343BeJ9Hqv .noteText>tspan{fill:#000;stroke:none}#mermaid-svg-MJgb2q343BeJ9Hqv .activation0{fill:#f4f4f4;stroke:#666}#mermaid-svg-MJgb2q343BeJ9Hqv .activation1{fill:#f4f4f4;stroke:#666}#mermaid-svg-MJgb2q343BeJ9Hqv .activation2{fill:#f4f4f4;stroke:#666}#mermaid-svg-MJgb2q343BeJ9Hqv .mermaid-main-font{font-family:"trebuchet ms", 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.taskTextOutsideRight.clickable{cursor:pointer;fill:#003163 !important;font-weight:bold}#mermaid-svg-MJgb2q343BeJ9Hqv .taskText0,#mermaid-svg-MJgb2q343BeJ9Hqv .taskText1,#mermaid-svg-MJgb2q343BeJ9Hqv .taskText2,#mermaid-svg-MJgb2q343BeJ9Hqv .taskText3{fill:#fff}#mermaid-svg-MJgb2q343BeJ9Hqv .task0,#mermaid-svg-MJgb2q343BeJ9Hqv .task1,#mermaid-svg-MJgb2q343BeJ9Hqv .task2,#mermaid-svg-MJgb2q343BeJ9Hqv .task3{fill:#8a90dd;stroke:#534fbc}#mermaid-svg-MJgb2q343BeJ9Hqv .taskTextOutside0,#mermaid-svg-MJgb2q343BeJ9Hqv .taskTextOutside2{fill:#000}#mermaid-svg-MJgb2q343BeJ9Hqv .taskTextOutside1,#mermaid-svg-MJgb2q343BeJ9Hqv .taskTextOutside3{fill:#000}#mermaid-svg-MJgb2q343BeJ9Hqv .active0,#mermaid-svg-MJgb2q343BeJ9Hqv .active1,#mermaid-svg-MJgb2q343BeJ9Hqv .active2,#mermaid-svg-MJgb2q343BeJ9Hqv .active3{fill:#bfc7ff;stroke:#534fbc}#mermaid-svg-MJgb2q343BeJ9Hqv .activeText0,#mermaid-svg-MJgb2q343BeJ9Hqv .activeText1,#mermaid-svg-MJgb2q343BeJ9Hqv .activeText2,#mermaid-svg-MJgb2q343BeJ9Hqv 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#aggregationEnd{fill:#ECECFF;stroke:#9370db;stroke-width:1}#mermaid-svg-MJgb2q343BeJ9Hqv #dependencyStart{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-MJgb2q343BeJ9Hqv #dependencyEnd{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-MJgb2q343BeJ9Hqv #extensionStart{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-MJgb2q343BeJ9Hqv #extensionEnd{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-MJgb2q343BeJ9Hqv .commit-id,#mermaid-svg-MJgb2q343BeJ9Hqv .commit-msg,#mermaid-svg-MJgb2q343BeJ9Hqv .branch-label{fill:lightgrey;color:lightgrey;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-MJgb2q343BeJ9Hqv .pieTitleText{text-anchor:middle;font-size:25px;fill:#000;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-MJgb2q343BeJ9Hqv .slice{font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-MJgb2q343BeJ9Hqv g.stateGroup text{fill:#9370db;stroke:none;font-size:10px;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-MJgb2q343BeJ9Hqv g.stateGroup text{fill:#9370db;fill:#333;stroke:none;font-size:10px}#mermaid-svg-MJgb2q343BeJ9Hqv g.statediagram-cluster .cluster-label text{fill:#333}#mermaid-svg-MJgb2q343BeJ9Hqv g.stateGroup .state-title{font-weight:bolder;fill:#000}#mermaid-svg-MJgb2q343BeJ9Hqv g.stateGroup rect{fill:#ECECFF;stroke:#9370db}#mermaid-svg-MJgb2q343BeJ9Hqv g.stateGroup line{stroke:#9370db;stroke-width:1}#mermaid-svg-MJgb2q343BeJ9Hqv .transition{stroke:#9370db;stroke-width:1;fill:none}#mermaid-svg-MJgb2q343BeJ9Hqv .stateGroup .composit{fill:white;border-bottom:1px}#mermaid-svg-MJgb2q343BeJ9Hqv .stateGroup .alt-composit{fill:#e0e0e0;border-bottom:1px}#mermaid-svg-MJgb2q343BeJ9Hqv .state-note{stroke:#aa3;fill:#fff5ad}#mermaid-svg-MJgb2q343BeJ9Hqv .state-note text{fill:black;stroke:none;font-size:10px}#mermaid-svg-MJgb2q343BeJ9Hqv .stateLabel .box{stroke:none;stroke-width:0;fill:#ECECFF;opacity:0.7}#mermaid-svg-MJgb2q343BeJ9Hqv .edgeLabel text{fill:#333}#mermaid-svg-MJgb2q343BeJ9Hqv .stateLabel text{fill:#000;font-size:10px;font-weight:bold;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-MJgb2q343BeJ9Hqv .node circle.state-start{fill:black;stroke:black}#mermaid-svg-MJgb2q343BeJ9Hqv .node circle.state-end{fill:black;stroke:white;stroke-width:1.5}#mermaid-svg-MJgb2q343BeJ9Hqv #statediagram-barbEnd{fill:#9370db}#mermaid-svg-MJgb2q343BeJ9Hqv .statediagram-cluster rect{fill:#ECECFF;stroke:#9370db;stroke-width:1px}#mermaid-svg-MJgb2q343BeJ9Hqv .statediagram-cluster rect.outer{rx:5px;ry:5px}#mermaid-svg-MJgb2q343BeJ9Hqv .statediagram-state .divider{stroke:#9370db}#mermaid-svg-MJgb2q343BeJ9Hqv .statediagram-state .title-state{rx:5px;ry:5px}#mermaid-svg-MJgb2q343BeJ9Hqv .statediagram-cluster.statediagram-cluster .inner{fill:white}#mermaid-svg-MJgb2q343BeJ9Hqv .statediagram-cluster.statediagram-cluster-alt .inner{fill:#e0e0e0}#mermaid-svg-MJgb2q343BeJ9Hqv .statediagram-cluster .inner{rx:0;ry:0}#mermaid-svg-MJgb2q343BeJ9Hqv .statediagram-state rect.basic{rx:5px;ry:5px}#mermaid-svg-MJgb2q343BeJ9Hqv .statediagram-state rect.divider{stroke-dasharray:10,10;fill:#efefef}#mermaid-svg-MJgb2q343BeJ9Hqv .note-edge{stroke-dasharray:5}#mermaid-svg-MJgb2q343BeJ9Hqv .statediagram-note rect{fill:#fff5ad;stroke:#aa3;stroke-width:1px;rx:0;ry:0}:root{--mermaid-font-family: '"trebuchet ms", verdana, arial';--mermaid-font-family: "Comic Sans MS", "Comic Sans", cursive}#mermaid-svg-MJgb2q343BeJ9Hqv .error-icon{fill:#522}#mermaid-svg-MJgb2q343BeJ9Hqv .error-text{fill:#522;stroke:#522}#mermaid-svg-MJgb2q343BeJ9Hqv .edge-thickness-normal{stroke-width:2px}#mermaid-svg-MJgb2q343BeJ9Hqv .edge-thickness-thick{stroke-width:3.5px}#mermaid-svg-MJgb2q343BeJ9Hqv .edge-pattern-solid{stroke-dasharray:0}#mermaid-svg-MJgb2q343BeJ9Hqv .edge-pattern-dashed{stroke-dasharray:3}#mermaid-svg-MJgb2q343BeJ9Hqv .edge-pattern-dotted{stroke-dasharray:2}#mermaid-svg-MJgb2q343BeJ9Hqv .marker{fill:#333}#mermaid-svg-MJgb2q343BeJ9Hqv .marker.cross{stroke:#333}:root { --mermaid-font-family: "trebuchet ms", verdana, arial;}#mermaid-svg-MJgb2q343BeJ9Hqv {color: rgba(0, 0, 0, 0.75);font: ;}

链接

长方形

圆

圆角长方形

菱形

关于 Mermaid 语法，参考这儿,

FLowchart流程图

我们依旧会支持flowchart的流程图：

Created with Raphaël 2.2.0开始我的操作确认？结束yesno

关于 Flowchart流程图 语法，参考这儿.

导出与导入

导出

如果你想尝试使用此编辑器, 你可以在此篇文章任意编辑。当你完成了一篇文章的写作, 在上方工具栏找到 文章导出 ，生成一个.md文件或者.html文件进行本地保存。

导入

如果你想加载一篇你写过的.md文件，在上方工具栏可以选择导入功能进行对应扩展名的文件导入，
继续你的创作。

注脚的解释 ↩︎

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网络安全现状及防范措施