首次完成数据库登录，注册验证。首次完成，migrate_manager.py迁移多个数据库

app/route/public.py

@@ -0,0 +1,21 @@
+from flask import Blueprint, render_template
+
+public = Blueprint('public', __name__)
+
+
+@public.route('/')
+def index():
+    return render_template("public/index.html")
+
+
+@public.route('/about')
+def about():
+    return render_template("public/about.html")
+
+@public.route("/terms")
+def terms():
+    return "terms Page"
+
+@public.route("/privacy")
+def privacy():
+    return "privacy Page"