Hpw tp 使用 Python 创建 SQLite3 .db 文件

Question

下面的代码按原样工作，但将原始字符串（最后一条语句）更改为变量不会。

为什么？我如何让它与变量一起工作？

def create_connection(db_file):
    """ create a database connection to a SQLite database """
    conn = None
    try:
        conn = sqlite3.connect(db_file)
        print(sqlite3.version)
    except Error as e:
        print(e)
    finally:
        if conn:
            conn.close()

if __name__ == '__main__':
    create_connection(r"C:\sqlite\db\pythonsqlite.db")

Answer 1

您只需定义

path

并将其传递给

create_connection

像往常一样：

import sqlite3

def create_connection(db_file):
    """ create a database connection to a SQLite database """
    conn = None
    try:
        conn = sqlite3.connect(db_file)
        print(sqlite3.version)
    except Error as e:
        print(e)
    finally:
        if conn:
            conn.close()

path = r"C:\sqlite\db\pythonsqlite.db"

if __name__ == '__main__':
    create_connection(path)