添加了支持MySQL数据库的测试代码

bin/tests/fetchtable.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+# -- coding:utf-8 --
+# @Author: markushammered@gmail.com
+# @Development Tool: PyCharm
+# @Create Time: 2022/2/26
+# @File Name: fetchtable.py
+
+
+import sqlite3
+
+conn = sqlite3.connect('../db/data.db')
+cursor = conn.cursor()
+cursor.execute('select * from sqlite_master where type="table"')
+tables = []
+for i in cursor.fetchall():
+    tables.append(i[1])
+
+print(tables)