PYTHON第六十五天笔记11.24
一、自记录
1 “字节”与“字符串”相互转换的两种方式:
(1)
by = b"yyyyyyyyyy"
print(by.decode('utf-8'))
st = "uuuuuuuuuuu"
print(st.encode('utf-8'))
(2)
b = b"saj;fjsadfj;klszjf"
print(str(b, encoding='utf-8'))
s = "sdfjsdjfwjeofjskdf"
print(bytes(s, encoding='utf-8'))
三、课堂图片
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3.1
3.2
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5 pycharm自带数据库工具的使用
6
7
8 pymysql的cursor类型(1)
9 pymysql的cursor类型(2)-[默认无参]