python操作mysql

 1 import pymysql
 2 
 3 conn = pymysql.connect(host=‘127.0.0.1‘,user=‘root‘,passwd=‘xilehang99‘,db=‘liyaoguo‘)
 4 
 5 cur = conn.cursor()
 6 
 7 reCount = cur.execute(‘insert into students(name,sex,age,tel,nal) values(%s,%s,%s,%s,%s)‘,(‘jack‘,‘F‘,23,123456,‘chain‘))
 8 
 9 conn.commit()
10 
11 cur.close()
12 conn.close()
13 
14 print (reCount)

 1 import pymysql
 2 
 3 conn = pymysql.connect(host=‘127.0.0.1‘,user=‘root‘,passwd=‘xilehang99‘,db=‘liyaoguo‘)
 4 
 5 cur = conn.cursor()
 6 
 7 reCount = cur.execute(‘select * from students‘)  #查询表内容
 8 
 9 conn.commit()
10 
11 cur.close()
12 conn.close()
13 
14 print (reCount)
15 print(cur.fetchone())  #获取一条结果
16 print(cur.fetchmany(2))  #获取前两条结果
17 print(cur.fetchall())  #获取所有结果

 1 import pymysql
 2 
 3 conn = pymysql.connect(host=‘127.0.0.1‘,user=‘root‘,passwd=‘xilehang99‘,db=‘liyaoguo‘)
 4 
 5 cur = conn.cursor()
 6 
 7 reCount = cur.execute(‘update students set Name = %s‘,(‘alin‘,))  #修改数据
 8 reCount = cur.execute(‘delete from students‘)  #删除数据
 9 
10 conn.commit()
11 
12 cur.close()
13 conn.close()
14 
15 print (reCount)