NameError Traceback (most recent call last) Cell In[1], line 9 7 # 计算待遇等待期 8 waiting_period = 90 # 天数 ----> 9 treatment_date = datetime.strptime(treatment_date, “%Y-%m-%d”) 10 enrollment_date = datetime.strptime(enrollment_date, “%Y-%m-%d”) 12 # 计算是否在待遇等待期内
NameError: name ‘datetime’ is not defined