在python中,如何仅选择数字数据类型并将其保存在数组中?

编辑:我添加了一个示例行

这里F1和F3是数值场。所以我想在数组变量中保留这两个字段名 字段名=[“F1”,“F3”]

import csv
import pandas as pd
import numpy as np

data = pd.read_csv(r'C:\Users\spanda031\Downloads\test_19.csv')
print(data.dtypes)
with open(r'C:\Users\spanda031\Downloads\test_19.csv') as f:
    d_reader = csv.DictReader(f)

    #get fieldnames from DictReader object and store in list
    headers = d_reader.fieldnames
    print(headers)
    for line in headers:
        #print value in MyCol1 for each row
        print(line)        
        v3=np.array(data[line])