python读取csv文件的某一列或某几列

python读取csv文件的某一列或某几列

 

import csv
import pandas as pd

with open('D:Data新建文件夹list3.2.csv','r') as csvfile:
    reader = csv.reader(csvfile)
    column1 = [row[1]for row in reader]
    print(column1)


# 下面是按照列属性读取的
d = pd.read_csv('D:Data新建文件夹list3.2.csv', usecols=['case', 'roi', 'eq. diam.','x loc.','y loc.','slice no.'])
print(d)

d = pd.read_csv('D:Data新建文件夹list3.2.csv', usecols=['case', 'roi', 'eq. diam.','x loc.','y loc.','slice no.'],
                nrows=10)
# 这是表示读取前10行