pymysql怎么連接python？用python連接本地的mysqlimport pymysql# 1.獲取連接對(duì)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(duì)象

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

#2.從連接對(duì)象中獲取游標(biāo)

cur =conn.cursor()

# 3.組裝sql語(yǔ)句

sql = "select * from stu_score"

# 4.執(zhí)行sql語(yǔ)句

cur.execute(sql)

#5.如果sql語(yǔ)句是像建表、建庫(kù)，添加數(shù)據(jù)之類(lèi)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()