pymysql怎么連接python？用python連接本地的mysqlimport pymysql# 1.獲取連接對象conn = pymysql.connect(host="localhost"，u

pymysql怎么連接python？

用python連接本地的mysql

import pymysql

# 1.獲取連接對象

conn = pymysql.connect(host="localhost"，user="root"，passwd="123456"，db="myschool"，charset="utf8")

#2.從連接對象中獲取游標(biāo)

cur =conn.cursor()

# 3.組裝sql語句

sql = "select * from stu_score"

# 4.執(zhí)行sql語句

cur.execute(sql)

#5.如果sql語句是像建表、建庫，添加數(shù)據(jù)之類的需要提交sql，要commit

# conn.commit()

# 獲取一條數(shù)據(jù)

one = cur.fetchone()

print(one)

# 獲取多條記錄"

many = cur.fetchmany(3)

print(many)

# 獲取所有記錄

data = cur.fetchall()

print(data)

#循環(huán)獲取數(shù)據(jù)，打印成表格格式

for stu_score in data:

for j in stu_score:

print(j， end="t")

print(end="n")

#關(guān)閉游標(biāo)

cur.close()

#關(guān)閉連接

conn.close()

mysql如何與Excel、R、python連接使用？

#!/usr/bin/python# -*- coding: UTF-8 -*-import MySQLdb# 打開數(shù)據(jù)庫連接db = MySQLdb.connect("localhost"，"testuser"，"test123"，"TESTDB" )# 使用cursor()方法獲取操作游標(biāo) cursor = db.cursor()# 使用execute方法執(zhí)行SQL語句cursor.execute("SELECT VERSION()")# 使用 fetchone() 方法獲取一條數(shù)據(jù)data = cursor.fetchone()print "Database version : %s " % data# 關(guān)閉數(shù)據(jù)庫連接db.close()