Python 读写字节数据（转）

转自：Python 读写字节数据

使用模式为 rb 或 wb 的 open() 函数来读取或写入二进制数据。比如：

# Read the entire file as a single byte string
with open('somefile.bin', 'rb') as f:
    data = f.read()
 
# Write binary data to a file
with open('somefile.bin', 'wb') as f:
    f.write(b'Hello World')