发现网上都是mysql，后面发现PG跟mysql差不多，记录下来，怕忘了
import psycopg2
from DBUtils.PooledDB import PooledDB
import psycopg2.extraspool = PooledDB(psycopg2, 10,database="boatdb", user="postgres",password="xxxx", host="127.0.0.1", port="5432")
print("connect success")conn = pool.connection()
cur = conn.cursor()
SQL = "select * from car_data"
r = cur.execute(SQL)
r = cur.fetchall()
cur.close()
conn.close()下面是MySQL的import MySQLdb
from DBUtils.PooledDB import PooledDB
pool = PooledDB(MySQLdb,5,host='localhost',user='root',passwd='pwd',db='myDB',port=3306) conn = pool.connection()
cur=conn.cursor()
SQL="select * from table1"
r=cur.execute(SQL)
r=cur.fetchall()
cur.close()
conn.close()复制代码
