When python reads a file, UnicodeDecodeError: 'gbk' codec can't decode byte 0x80 in position 205: illegal multib

When python reads a file, it prompts "UnicodeDecodeError: 'gbk' codec can't decode byte 0x80 in position 205: illegal multibyte sequence"

Solution 1.
FILE_OBJECT= open('order.log','r', encoding='UTF-8')

Solution 2.

FILE_OBJECT= open(‘order.log’,’rb’)