python通过pandas库读取csv文件

import pandas as pd
List = []
lie = int(input("请输入列数："))
hang = int(input("请输入行数："))
for i in range(lie):
    List.append(i)
df = pd.read_csv("C:\\Users\\dgd71\\Desktop\\datas.csv",encoding="gbk",usecols=List)
data = df.head(hang)
print("获取到所有的值:\n{0}".format(data))