from pymysql import *
 
def main():
    # 創(chuàng)建Connection連接
    conn = connect(host='localhost',port=3306,user='root',password='mysql',database='jing_dong',charset='utf8')
    # 獲得Cursor對(duì)象
    cs1 = conn.cursor()
    # 執(zhí)行select語(yǔ)句，并返回受影響的行數(shù)：查詢一條數(shù)據(jù)
    count = cs1.execute('select id,name from goods where id>=4')
    # 打印受影響的行數(shù)
    print("查詢到%d條數(shù)據(jù):" % count)
 
    for i in range(count):
        # 獲取查詢的結(jié)果
        result = cs1.fetchone()
        # 打印查詢的結(jié)果
        print(result)  # 元組 (1, '張三', 20, '男')
        # 獲取查詢的結(jié)果
 
    # 關(guān)閉Cursor對(duì)象
    cs1.close()
    conn.close()

if __name__ == '__main__':
    main()

#! /usr/bin/python
# filename  conn.py
import MySQLdb         # 載入連接數(shù)據(jù)庫(kù)模塊  
try:              # 嘗試連接數(shù)據(jù)庫(kù)
    conn = MySQLdb.connect("localhost","root","www","yao",charset="utf8")  # 定義連接數(shù)據(jù)庫(kù)的信息
except MySQLdb.OperationalError, message:  # 連接失敗提示
    print "link error"
 
cursor=conn.cursor()          #定義連接對(duì)象
cursor.execute("select * from user")  #使用cursor提供的方法來(lái)執(zhí)行查詢語(yǔ)句
data=cursor.fetchall()         #使用fetchall方法返回所有查詢結(jié)果
print data              #打印查詢結(jié)果
cursor.close()            #關(guān)閉cursor對(duì)象
conn.close()             #關(guān)閉數(shù)據(jù)庫(kù)鏈接