1小時(shí)學(xué)會(huì) Python操作Mysql數(shù)據(jù)庫之pymysql模塊技術(shù)：https://www.bilibili.com/video/BV1Dz4y1j7Jr

通過pymysql的Connection類創(chuàng)建數(shù)據(jù)庫連接，用完一定要關(guān)閉連接。

from pymysql import Connection

# 創(chuàng)建數(shù)據(jù)庫連接
con = Connection(
    host="localhost",  # 主機(jī)名
    port=3306,  # 端口
    user="root",  # 賬戶
    password="123456"  # 密碼
)
print(type(con))
print(con.get_host_info())
print(con.get_server_info())

# 關(guān)閉連接
con.close()

運(yùn)行輸出：

<class 'pymysql.connections.Connection'>
socket localhost:3306
5.7.18-log

改進(jìn)，可能會(huì)出現(xiàn)異常，我們加上 try except finally

from pymysql import Connection

con = None

try:
    # 創(chuàng)建數(shù)據(jù)庫連接
    con = Connection(
        host="localhost",  # 主機(jī)名
        port=3306,  # 端口
        user="root",  # 賬戶
        password="123456"  # 密碼
    )
    print(type(con))
    print(con.get_host_info())
    print(con.get_server_info())
except Exception as e:
    print("異常：", e)
finally:
    if con:
        # 關(guān)閉連接
        con.close()