diff --git a/polls/migrations/0001_initial.py b/polls/migrations/0001_initial.py
new file mode 100644
index 0000000..4d30c43
--- /dev/null
+++ b/polls/migrations/0001_initial.py
@@ -0,0 +1,32 @@
+# Generated by Django 4.1 on 2022-08-30 01:35
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Question',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('question_text', models.CharField(max_length=200)),
+                ('pub_date', models.DateField(verbose_name='date published')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Choice',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('choice_text', models.CharField(max_length=200)),
+                ('votes', models.IntegerField(default=0)),
+                ('question', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='polls.question')),
+            ],
+        ),
+    ]
diff --git a/polls/models.py b/polls/models.py
index 71a8362..41459ac 100644
--- a/polls/models.py
+++ b/polls/models.py
@@ -1,3 +1,13 @@
 from django.db import models
 
+
 # Create your models here.
+class Question(models.Model):
+    question_text = models.CharField(max_length=200)
+    pub_date = models.DateField('date published')
+
+
+class Choice(models.Model):
+    question = models.ForeignKey(Question, on_delete=models.CASCADE)
+    choice_text = models.CharField(max_length=200)
+    votes = models.IntegerField(default=0)
diff --git a/requirement.txt b/requirement.txt
new file mode 100644
index 0000000..318a3cf
Binary files /dev/null and b/requirement.txt differ
diff --git a/w3cschool_demo/settings.py b/w3cschool_demo/settings.py
index 103d8b4..c3f0fb5 100644
--- a/w3cschool_demo/settings.py
+++ b/w3cschool_demo/settings.py
@@ -31,6 +31,7 @@ ALLOWED_HOSTS = []
 # Application definition
 
 INSTALLED_APPS = [
+    'polls.apps.PollsConfig',
     'django.contrib.admin',
     'django.contrib.auth',
     'django.contrib.contenttypes',
@@ -75,8 +76,12 @@ WSGI_APPLICATION = 'w3cschool_demo.wsgi.application'
 
 DATABASES = {
     'default': {
-        'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': BASE_DIR / 'db.sqlite3',
+        'ENGINE': 'django.db.backends.mysql',
+        'NAME': 'django_w3cschool_demo',
+        'USER': 'django',
+        'PASSWORD': 'djangopwd',
+        'HOST': 'home.rogersun.online',
+        'PORT': '3306'
     }
 }
 
@@ -103,9 +108,9 @@ AUTH_PASSWORD_VALIDATORS = [
 # Internationalization
 # https://docs.djangoproject.com/en/4.1/topics/i18n/
 
-LANGUAGE_CODE = 'en-us'
+LANGUAGE_CODE = 'zh-hans'
 
-TIME_ZONE = 'UTC'
+TIME_ZONE = 'Asia/Shanghai'
 
 USE_I18N = True