如下：
导入pymysql包就可以，
1 import pymysql #python3使用这个包连接mysql 2 3 db = pymysql.connect('localhost','root','123456','testmysql') #连接数据库地址、账户、密码、database 4 5 cursor = db.cursor() #cursor方法得到操作对象 6 7 cursor.execute('select version()') #执行SQL语句 8 9 sql = 'select * from employee' 10 11 cursor.execute(sql) 12 sql1 = 'insert into employee (id,name,salary,departmentid) values (8,"s8",20043,2)' #values后面的非数字的值必须要用“ ”双引号 13 14 sql2 = 'create table python_connect(id int primary key auto_increment,name varchar(11))' 15 sql3 = 'insert into python_connect (id,name)values (1,"yx")' #为什么insert无效? 16 17 sql4 = 'update python_connect set name = "xx" where id = 1' 18 19 combine = (sql3,sql4) 20 21 sql5 = 'delete from python_connect where id = 1' 22 cursor.execute(sql2) 23 24 # 使用excutemany()执行多条语句 25 tmp = "insert into exch_no_rand_auto(stkcode) values(%s);" #SQL模板字符串 26 l_tupple = [(i,) for i in range(100)] #生成数据参数，list里嵌套tuple 27 cursor.executemany(tmp,l_tupple) 28 29 30 for i in combine: #excutemany()方法可以执行多条语句，但是必须每条语句的形式一致，不一致的就用for吧 31 cursor.execute(i) 32 33 db.commit() #insert、update、delete语句需要commit()提交才能执行,但是select不需要,因为增删改都会对表进行改变，查不会 34 35 36 data = cursor.fetchone() #fechone方法返回一条记录 37 data = cursor.fetchall() #fetchall 返回所有记录 38 data = cursor.fetchmany(2) #fetchmany 返回指定条记录 39 40 print(data) 41 print(type(data)) #返回的是tuple元组类型数据 42 db.close()