学习笔记 1.ios自动配控件 学习过程中app出现这个错误 Terminating app due to uncaught exception ‘NSUnknownKeyException’, reason: ‘[ setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key myB

import 需要用到的库 import pandas as pdimport numpy as npproduct = 'IH'stime = '093500'etime = '145500' ## load数据以及对数据做基本处理 data= pd.read_csv('IH_20230720.csv'.format(product), parse_dates=['Datetime