Python打开文件报错SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated UXXXXXXXX escape

#path 是文件路径

f=open('C:UsersjingqiuDesktopNew Text Document.txt')

结果报错SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated UXXXXXXXX escape

文件路径加 r 变成 f=open(r'C:UsersjingqiuDesktopNew Text Document.txt')

或者用f=open('C:\Users\jingqiu\Desktop\New Text Document.txt')

然后f.read()结果是。。。。。。。。。

Traceback (most recent call last):
  File "<pyshell#4>", line 1, in <module>
    f.read()
  File "C:UsersxiuweAppDataLocalProgramsPythonPython37libencodingscp1252.py", line 23, in decode
    return codecs.charmap_decode(input,self.errors,decoding_table)[0]
UnicodeDecodeError: 'charmap' codec can't decode byte 0x8d in position 17: character maps to <undefined>

编码问题

f = open(r'C:UsersjingqiuDesktopNew Text Document.txt',encoding='utf-8')

f.read()

OK ^_^