1.往数据库的表添加值(sf和sdf用"sf"这种形式，用'sf'会报错)
insert_data ='insert ignore into music values (0,"sf","sdf")'
result = cur.execute(insert_data)
2.创建表格：记得加"""，不然会报错
create_table ="""create table music2 (
ID INT ,
music_name varchar(20),
music_url varchar(280),
primary key (music_name)
)
"""
print(create_table)
result = cur.execute(create_table)
3.传递参数
错误的写法
a = "12d"
b = "psk"
insert_data ="insert ignore into music values (0,a,b)
result = cur.execute(insert_data)
正确的写法
a = "12d"
b = "psk"
insert_data ="insert ignore into music values (0,'%s','%s')"%(a,b)
result = cur.execute(insert_data)
