python 数据库使用

以下的是我的数据表结构

image.png

#coding:utf-8
import pymysql
import pymysql.cursors


connection = pymysql.connect(host='127.0.0.1',
                             user='root',
                             password='root',
                             db='test',
                             port=3306,
                             charset='utf8')  # 注意是utf8不是utf-8
try:
    with connection.cursor() as cursor:
        cursor.execute("SET NAMES utf8")
        sql_1 = 'select * from user'
        cout_1 = cursor.execute(sql_1)
        print("目前数量： " + str(cout_1))
        for row in cursor.fetchall():
            print("id:", str(row[0]), 'name', str(row[1]), 'age', str(row[2]))

        sql_2 = 'insert into user(name,age,sex) value("什么鬼",26,1)'
        cout_2 = cursor.execute(sql_2)
        print("插入的数量： " + str(cout_2))
        connection.commit()
finally:
    connection.close()