python如何导入csv文件格式

from csv importreader

import numpy as np

filename=input("请输入文件名： ")

withopen(filename,'rt',encoding='UTF-8')as raw_data:

    readers=reader(raw_data,delimiter=',')

    x=list(readers)

    data=np.array(x)

    print(data)

    print(data.shape)

from numpy importloadtxt

filename=input("文件名：")

withopen(filename,'rt',encoding='UTF-8')as raw_data:

    data=loadtxt(raw_data,delimiter=',')

    print(data)

from pandas importread_csv

filename=input("文件名：")

f=open(filename,encoding='UTF-8')

names=['作业日期','ηCO','ηH2','TF(℃)','TC(℃)','mass','送风流量']

data=read_csv(f,names=names)

print(data)