python3遇到的error

SyntaxError: (unicode error) ‘unicodeescape’ codec can’t decode bytes in position

原始代码
for x in os.listdir('C:\Users\Administrator\Desktop\files'):
    print(x)

解决方法：
for x in os.listdir(r'C:\Users\Administrator\Desktop\files'):
    print(x)

 UnicodeDecodeError: 'gbk' codec can't decode byte 0xab in position 137: illegal multibyte sequence

#原始代码
with open(path+'/'+file, 'r') as f:
        content = f.read()

#解决方法
with open(path+'/'+file, 'r', encoding='utf-8') as f:
        content = f.read()