跟着麦叔学flask，感谢b站麦叔

main.py

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+from flask import Flask, render_template, redirect, url_for, g
+from blueprint.blog_views import blog_bp
+from blueprint.study_views import study_bp
+# from blueprint.admin_views import admin_bp
+import os
+
+app = Flask(__name__, static_url_path='/static/')
+
+# session
+#app.secret_key = "508948973a8651f160baf3b26f18c47d"
+app.secret_key = '玩鵬畝遜溉痕叛課還擇鼇粹拜溜泉聰倡效蘭鱅都凍芝西鄂'
+
+
+
+# 注册蓝图
+app.register_blueprint(blog_bp, url_prefix='/blog')
+app.register_blueprint(study_bp, url_prefix='/study')
+# app.register_blueprint(admin_bp, url_prefix='/admin')
+
+
+@app.route('/')
+def repage():
+    # return '<meta http-equiv="refresh" content="0.1;url=/blog/">'
+    return redirect(url_for('study.home'))
+
+
+@app.route('/greet/<name>/')
+def greet(name):
+    return f'Hello, {name}!'
+
+# 全局清理关闭数据库连接
+@app.teardown_appcontext
+def close_connection(exception):
+    db = getattr(g, '_database', None)
+    if db is not None:
+        db.close()
+
+if __name__ == '__main__':
+    app.run(host="0.0.0.0", port=8085, debug=True)