V_victor的博客

With语句是什么？Python’s with statement provides a very convenient way of dealing with the situation where you have to do a setup and teardown to make something happen. A very good example for this is t

在python3中，bytes string和unicodestring是两种不同的类型。由于python3中，字符串str在内存中是以unicode表示，一个字符对应多个字节。如果在网上传输，就需要将str转化为以字节为单位的bytes。例如,在做套接字试验时，客户端与服务端经行数据传输时，不进行字符转换，会报错。如下，TypeError:'str' does not sup