接口返的数据结构做统一处理

db/sql.txt

@@ -56,3 +56,9 @@ CREATE TABLE chat_mysql.messages (
     FOREIGN KEY (receiver_name)
         REFERENCES chat_mysql.users(username)
 );
+
+#删除某个人的发送聊天数据
+SELECT *
+FROM chat_mysql.messages
+WHERE sender_name = 'test';
+DELETE FROM chat_mysql.messages WHERE sender_name = 'test';