diff --git a/app/test/test_bug553_LinShan.py b/app/test/test_bug553_LinShan.py
new file mode 100644
index 0000000..8ba25f1
--- /dev/null
+++ b/app/test/test_bug553_LinShan.py
@@ -0,0 +1,81 @@
+# -*- coding: utf-8 -*-
+# Run the docker image using the following command:
+# docker run -d -p 4444:4444 selenium/standalone-chrome
+from selenium import webdriver
+from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
+from selenium.webdriver.support import expected_conditions as EC
+from selenium import webdriver
+from selenium.webdriver.support.wait import WebDriverWait
+from selenium.webdriver.common.by import By
+from webdriver_manager.chrome import ChromeDriverManager
+from selenium.webdriver.common.keys import Keys
+import logging
+import json
+import os
+import time
+
+# driver = webdriver.Remote('http://localhost:4444/wd/hub', DesiredCapabilities.FIREFOX)
+# HOME_PAGE = 'http://121.4.94.30:91/'
+
+
+# 我使用的是Chrome浏览器，所以我又通过安装webdriver-manager插件来配置浏览器的驱动
+# 我通过 'pip install webdriver-manager==4.00' 命令安装webdriver-manager，并且设置其版本为4.00
+driver = webdriver.Chrome(ChromeDriverManager().install())
+HOME_PAGE = 'http://127.0.0.1:5000/'
+driver.implicitly_wait(10)
+
+
+# 加载存有测试数据的json文件
+def load_json_file(file_path):
+    # 获取当前所在文件的目录
+    dir_path = os.path.dirname(os.path.abspath(__file__))
+    # 将目录路径和文件名进行拼接，获取最终的文件路径
+    file_path = dir_path+"\\"+file_path
+    # 加载文件
+    with open(file_path,encoding='utf-8') as f:
+        data = json.load(f)
+    return data
+
+
+def test_bug553_LinShan():
+    try:
+        # 打开对应地址的网页
+        driver.get(HOME_PAGE)
+
+        # 浏览器最大窗口化
+        driver.maximize_window()
+
+        # 判断网页源代码中是否有English Pal -文字
+        assert 'English Pal -' in driver.page_source
+
+        # 获取json格式的测试数据
+        words = load_json_file("test_file.json")
+
+        # 遍历测试的数据
+        for word in words:
+            # 将测试的数据输入到主页的textarea里
+            driver.find_element_by_xpath("//textarea[@name='content']").send_keys(Keys.CONTROL, "a")
+            driver.find_element_by_xpath("//textarea[@name='content']").send_keys(word['key'])
+            time.sleep(2)
+
+            # 点击按钮获取单词
+            driver.find_element_by_xpath("//input[@value='get文章中的词频']").click()
+            time.sleep(2)
+
+            # 获取筛选后的单词
+            get_words = driver.find_elements_by_xpath("//p/a")
+
+            # 遍历获取到的单词，并判断单词与预期的相同
+            for w in get_words:
+                # 判断单词是否在预期结果中
+                assert w.text in word['value']
+            
+            # 返回上一页网页
+            driver.find_element_by_xpath("//input[@value='确定并返回']").click()
+            time.sleep(2)
+    except Exception as e:
+        # 输出异常信息
+        logging.error(e)
+    finally:
+        # 关闭浏览器
+        driver.quit()
\ No newline at end of file
diff --git a/app/test/test_file.json b/app/test/test_file.json
new file mode 100644
index 0000000..5bd2499
--- /dev/null
+++ b/app/test/test_file.json
@@ -0,0 +1,30 @@
+[
+    {
+        "key":"‘test1’",
+        "value": ["test1"]
+    },
+    {
+        "key":"'test2'",
+        "value": ["test2"]
+    },
+    {
+        "key":"“test3”",
+        "value": ["test3"]
+    },
+    {
+        "key":"it's",
+        "value": ["it's"]
+    },
+    {
+        "key":"hello,I'm linshan",
+        "value": ["hello","i'm","linshan"]
+    },
+    {
+        "key":"Happy New Year！？",
+        "value": ["happy","new","year"]
+    },
+    {
+        "key":"My favorite book is 《Harry Potter》。",
+        "value":["potter","harry","my","favorite","book","is"]
+    }
+]
\ No newline at end of file
diff --git a/app/wordfreqCMD.py b/app/wordfreqCMD.py
index 4cf550e..feeafbd 100644
--- a/app/wordfreqCMD.py
+++ b/app/wordfreqCMD.py
@@ -106,7 +106,7 @@ if __name__ == '__main__':
         print('%s\t%d\t%s' % (x[0], x[1], youdao_link(x[0])))#函数导出
 
     # 把频率的结果放result.html中
-    make_html_page(sort_in_descending_order(L), 'result.html') 
+    make_html_page(sort_in_descending_order(L), 'result.html')
 
     print('\nHistory:\n')
     if os.path.exists('frequency.p'):