SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UX

当输入的路径如此是

f_train=open('C:\Users\Administrator\PycharmProjects\天池\ccf_offline_stage1_train.csv')

若出现错误：SyntaxError: (unicode error) ‘unicodeescape’ codec can’t decode bytes in position 2-3: truncated \UXXXXXXXX escape

是因为程序认为”\u“是转义字符，因此出错，改为“\\u”