flask SQLAlchemy pymysql 连接数据库

SQLite

sqlite:///database.db

MySQL

mysql+pymysql://user:password@ip:port/db_name

Postgres

postgresql+psycopg2://user:password@ip:port/db_name

MSSQL

mssql+pyodbc://user:password@dsn_name

Oracle

oracle+cx_oracle://user:password@ip:port/db_name

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class  DevConfig(Config):

　　debug=True

　　SQLALCHEMY_DATABASE_URI="Your_uri"