diff --git a/基本结构/042 restful/tf-35-app.py b/基本结构/042 restful/tf-35-app.py
new file mode 100644
index 0000000..848cbd6
--- /dev/null
+++ b/基本结构/042 restful/tf-35-app.py	
@@ -0,0 +1,23 @@
+from flask import Flask, request
+from cppy.cp_util import *
+
+'''
+使用Flask构建一个简单的服务端
+该服务端能够接收POST请求，并返回词频统计结果
+先运行该代码搭建起服务端，然后运行request文件进行词频统计
+'''
+app = Flask(__name__)
+
+@app.route('/word_frequency', methods=['POST'])
+def word_frequency():
+    # 获取POST请求中的JSON数据
+    data = request.get_json()
+    data = data['file']
+    # 统计词频
+    word_freq = get_frequencies(data)
+    word_freq = sort_dict(word_freq)
+    return word_freq
+
+if __name__ == '__main__':
+    app.run(debug=True)
+