JS库之Highlight.js的用法详解

官网：https://highlightjs.org/

下载地址：https://highlightjs.org/download/

下载到本地后，新建个页面测试

1、在head中加入css和js的引用

<head>
  <title>highlight</title>
  <meta http-equiv="content-type" content="text/html;charset=utf-8">
  <link rel="stylesheet" href="styles/default.css" rel="external nofollow" rel="external nofollow" >
  <script src="highlight.pack.js"></script>
  <script>hljs.initHighlightingOnLoad();</script>
</head> 

2、添加对应要显示的内容

<pre>
<code class="python">
  # 读取文件内容
  def fread(self):
    # 如果指针位置大于文件大小，说明是更换了文件
    self.filename = self.getLogPath()
    if not os.path.isfile(self.filename):
      while not self.checkfile() :
        time.sleep(5)
        self.filename = self.getLogPath()
      self.fclose()
      self.fopen()
      self.pos = 0
    self.hd.seek(self.pos,0)
    fline = self.hd.readline()
    self.pos = self.hd.tell()
    return fline.replace("\n","")
  # 将文件指针定位到文件尾部
  def feof(self):
    self.fopen()
    # 定位到文件末尾
    self.hd.seek(0,2)
    #设置指针位置
    self.pos = self.hd.tell()
</code>
</pre> 

这里需要把要显示的内容放入到  <pre><code>这里放内容...</code></pre>  这种格式中

默认的话会智能识别，若是识别不出来是什么语言，就需要在<code>标签中加入class

例如 <pre><code class="java" >xxx</code></pre> 即可

下载的时候可以选择你需要的语言，然后再打包，下载后会发现有个style文件夹，里面放了各种不同的显示颜色，为了看看都是些什么样子

我这里弄了个可以选择样式的页面

代码如下

<html>
<head>
  <title>highlight</title>
  <meta http-equiv="content-type" content="text/html;charset=utf-8">
  <link rel="stylesheet" href="styles/default.css" rel="external nofollow" rel="external nofollow" >
  <script src="highlight.pack.js"></script>
  <script>hljs.initHighlightingOnLoad();</script>
</head>
<body>
<div id="changeStyleSelect"></div>
PHP
<hr>
<pre><code class="php">
class Test {
  private $name;
  private $age;
  public function __construct($array) {
    $this->name = $array['name'];
    $this->age = $array['age'];
  }
  public function getName() {
    return $this->name;
  }
  public function setName($name) {
    $this->name = $name;
  }
  public function getAge() {
    return $this->age;
  }
  public function show() {
    printf('my name is %s,age is %d',$this->name,$this->age);
  }
}
</code></pre>
javascript
<hr>
<pre>
<code class="javascript">
  test = {
    name : function () {
      return 'hello';
    },
    age : function () {
      return 13;
    }
  }
</code>
</pre>
python
<hr>
<pre>
<code class="python">
  # 读取文件内容
  def fread(self):
    # 如果指针位置大于文件大小，说明是更换了文件
    self.filename = self.getLogPath()
    if not os.path.isfile(self.filename):
      while not self.checkfile() :
        time.sleep(5)
        self.filename = self.getLogPath()
      self.fclose()
      self.fopen()
      self.pos = 0
    self.hd.seek(self.pos,0)
    fline = self.hd.readline()
    self.pos = self.hd.tell()
    return fline.replace("\n","")
  # 将文件指针定位到文件尾部
  def feof(self):
    self.fopen()
    # 定位到文件末尾
    self.hd.seek(0,2)
    #设置指针位置
    self.pos = self.hd.tell()
</code>
</pre>
java
<hr>
<pre>
<code class="java">
  package l2f.gameserver.model;
  import java.util.ArrayList;
  public abstract class L2Character extends L2Object {
   public static final Short ABNORMAL_EFFECT_BLEEDING = 0x0_0_0_1; // not sure
   public void moveTo(int x, int y, int z) {
    _ai = null;
    _log.warning("Should not be called");
    if (1 > 5) {
     return;
    }
   }
   /** Task of AI notification */
   @SuppressWarnings( { "nls", "unqualified-field-access", "boxing" })
   public class NotifyAITask implements Runnable {
    private final CtrlEvent _evt;
    List mList = new ArrayList()
    public void run() {
     try {
      getAI().notifyEvent(_evt, _evt.class, null);
     } catch (Throwable t) {
      t.printStackTrace();
     }
    }
   }
  }
</code>
</pre>
<script>
  styleArr = ["agate.css","androidstudio.css","arduino-light.css","arta.css","ascetic.css","atelier-cave-dark.css","atelier-cave-light.css","atelier-dune-dark.css","atelier-dune-light.css","atelier-estuary-dark.css","atelier-estuary-light.css","atelier-forest-dark.css","atelier-forest-light.css","atelier-heath-dark.css","atelier-heath-light.css","atelier-lakeside-dark.css","atelier-lakeside-light.css","atelier-plateau-dark.css","atelier-plateau-light.css","atelier-savanna-dark.css","atelier-savanna-light.css","atelier-seaside-dark.css","atelier-seaside-light.css","atelier-sulphurpool-dark.css","atelier-sulphurpool-light.css","brown-paper.css","codepen-embed.css","color-brewer.css","dark.css","darkula.css","default.css","docco.css","dracula.css","far.css","foundation.css","github.css","github-gist.css","googlecode.css","grayscale.css","gruvbox-dark.css","gruvbox-light.css","hopscotch.css","hybrid.css","idea.css","ir-black.css","kimbie.dark.css","kimbie.light.css","magula.css","mono-blue.css","monokai.css","monokai-sublime.css","obsidian.css","paraiso-dark.css","paraiso-light.css","pojoaque.css","purebasic.css","qtcreator_dark.css","qtcreator_light.css","railscasts.css","rainbow.css","school-book.css","solarized-dark.css","solarized-light.css","sunburst.css","tomorrow.css","tomorrow-night.css","tomorrow-night-blue.css","tomorrow-night-bright.css","tomorrow-night-eighties.css","vs.css","xcode.css","xt256.css","zenburn.css"];
  selectHtml = [];
  selectHtml.push('<select id="changeStyle">');
  for(i in styleArr) {
    OptionValue = styleArr[i];
    selectHtml.push('<option value="' + OptionValue +'" >'+ OptionValue +'</option>');
  }
  selectHtml.push('</select>');
  selectHtmlString = selectHtml.join("");
  document.getElementById('changeStyleSelect').innerHTML = selectHtmlString;
  obj = document.getElementById('changeStyle');
  obj.addEventListener("change",function(event){
    var value = this.options[this.options.selectedIndex].value;
    l = document.createElement('link');
    l.setAttribute('href','styles/'+value);
    l.setAttribute('rel','stylesheet');
    document.head.appendChild(l);
  });
  </script>
</body>
</html> 

效果图：

总结

以上所述是小编给大家介绍的JS库之Highlight.js的用法详解，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对我们网站的支持！