weixin_39980129的博客我的数据库如图结构我取了其中的name age nr,做成array,只要...那么问题来了,取出的数据代入公式进行计算的时候,就会类型不符,这是就用到astype(np.float)代码如下import pymysqlimport numpy as npconn = pymy...
Ricco1010的博客代码: import pandas as pd a = pd.Series([‘1.11’,...a = a.astype(int) print(a) 报错 ValueError: invalid literal for int() with base 10: ‘1.11’ 代码: import pandas as pd a = pd.Series([‘1.11’...
weixin_39625709的博客废话不多说,大家还是直接看代码吧!import pandas as pdfrom matplotlib import pyplot as pltfrom datetime import datetimefilename='sitka_weather_2014.csv'df=pd.read_csv(filename)print(df.dtypes)df[' Min ...