修复插件无法正常使用问题，如下所示：

.gitignore

@@ -0,0 +1,92 @@
+# Created by .ignore support plugin (hsz.mobi)
+### Node template
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
+# next.js build output
+.next
+
+# nuxt.js build output
+.nuxt
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+.idea/

Plugin.php

@@ -1,16 +1,16 @@
 <?php
 /**
  * 一个 用于Typecho的 复制代码 的插件</a>
- * 
- * @package CodeCopy 
+ *
+ * @package CodeCopy
  * @author 兔子昂
  * @version 1.0.0
  * @link https://www.tuziang.com
  */
 class CodeCopy_Plugin implements Typecho_Plugin_Interface {
      /**
      * 激活插件方法,如果激活失败,直接抛出异常
-     * 
+     *
      * @access public
      * @return void
      * @throws Typecho_Plugin_Exception
@@ -22,7 +22,7 @@ public static function activate() {
 
     /**
      * 禁用插件方法,如果禁用失败,直接抛出异常
-     * 
+     *
      * @static
      * @access public
      * @return void
@@ -32,7 +32,7 @@ public static function deactivate(){}
 
     /**
      * 获取插件配置面板
-     * 
+     *
      * @access public
      * @param Typecho_Widget_Helper_Form $form 配置面板
      * @return void
@@ -44,7 +44,7 @@ public static function config(Typecho_Widget_Helper_Form $form){
 
     /**
      * 个人用户的配置面板
-     * 
+     *
      * @access public
      * @param Typecho_Widget_Helper_Form $form
      * @return void
@@ -53,29 +53,29 @@ public static function personalConfig(Typecho_Widget_Helper_Form $form){}
 
     /**
      * 插件实现方法
-     * 
+     *
      * @access public
      * @return void
      */
     public static function render() {
-        
+
     }
 
     /**
      *为header添加css文件
      *@return void
      */
     public static function header() {
-       
+
     }
 
     /**
      *为footer添加js文件
      *@return void
      */
     public static function footer() {
-      
-		$path = Helper::options()->pluginUrl . '/codecopy/';
+
+		$path = Helper::options()->pluginUrl . '/CodeCopy/';
 		echo '<script type="text/javascript" src="' . $path . 'codecopy.js"></script>';
     }
 }

codecopy.js

@@ -1,9 +1,11 @@
-//html5 给typecho添加 复制代码 功能 
+//html5 给typecho添加 复制代码 功能
 // by 兔子昂
-var codeblocks = document.getElementsByTagName("pre")
+// fixed by xiaomiwujiecao
+$(function () {
+  var codeblocks = document.getElementsByTagName("pre")
 //循环每个pre代码块，并添加 复制代码
 
-for (var i = 0; i < codeblocks.length; i++) {
+  for (var i = 0; i < codeblocks.length; i++) {
     //显示 复制代码 按钮
     currentCode = codeblocks[i]
     currentCode.style = "position: relative;"
@@ -16,46 +18,49 @@ for (var i = 0; i < codeblocks.length; i++) {
     currentCode.appendChild(copy)
     //让所有 "复制"按钮 全部隐藏
     copy.style.visibility = "hidden"
-}
+  }
 
 
-for (var i = 0; i < codeblocks.length; i++) {
+  for (var i = 0; i < codeblocks.length; i++) {
 
 
     !function (i) {
-        //鼠标移到代码块，就显示按钮
-        codeblocks[i].onmouseover = function () {
-            codeblocks[i].childNodes[1].style.visibility = "visible"
-        }
-
-        //执行 复制代码 功能
-        function copyArticle(event) {
-            const range = document.createRange();
-
-            //范围是 code，不包括刚才创建的div
-            range.selectNode(codeblocks[i].childNodes[0]);
-
-            const selection = window.getSelection();
-            if (selection.rangeCount > 0) selection.removeAllRanges();
-            selection.addRange(range);
-            document.execCommand('copy');
-
-            codeblocks[i].childNodes[1].innerHTML = "复制成功"
-            setTimeout(function () {
-                codeblocks[i].childNodes[1].innerHTML = "复制"
-            }, 1000);
-            //清除选择区
-            if (selection.rangeCount > 0) selection.removeAllRanges(); 0
-        }
-        codeblocks[i].childNodes[1].addEventListener('click', copyArticle, false);
+      //鼠标移到代码块，就显示按钮
+      codeblocks[i].onmouseover = function () {
+        codeblocks[i].childNodes[1].style.visibility = "visible"
+      }
+
+      //执行 复制代码 功能
+      function copyArticle(event) {
+        const range = document.createRange();
+
+        //范围是 code，不包括刚才创建的div
+        range.selectNode(codeblocks[i].childNodes[0]);
+
+        const selection = window.getSelection();
+        if (selection.rangeCount > 0) selection.removeAllRanges();
+        selection.addRange(range);
+        document.execCommand('copy');
+
+        codeblocks[i].childNodes[1].innerHTML = "复制成功"
+        setTimeout(function () {
+          codeblocks[i].childNodes[1].innerHTML = "复制"
+        }, 1000);
+        //清除选择区
+        if (selection.rangeCount > 0) selection.removeAllRanges();
+        0
+      }
+
+      codeblocks[i].childNodes[1].addEventListener('click', copyArticle, false);
 
     }(i);
 
     !function (i) {
-        //鼠标从代码块移开 则不显示复制代码按钮
-        codeblocks[i].onmouseout = function () {
-            codeblocks[i].childNodes[1].style.visibility = "hidden"
-        }
+      //鼠标从代码块移开 则不显示复制代码按钮
+      codeblocks[i].onmouseout = function () {
+        codeblocks[i].childNodes[1].style.visibility = "hidden"
+      }
     }(i);
-}
+  }
+})