摘要：
英文文档： class bytes([source[, encoding[, errors]]]) Return a new “bytes” object, which is an immutable sequence of integers in the range 0 <= x < 256. b 阅读全文
摘要：
英文文档： class bytearray([source[, encoding[, errors]]]) Return a new array of bytes. The bytearray class is a mutable sequence of integers in the range 阅读全文