Python read all files in specified directory

1. Read all files in the specified directory
 2. Read the specified file and output the content
 of the file 3. Create a file and save it to the specified directory

# -*- coding: UTF-8 -*-
'''
1. Read all files in the specified directory
2. Read the specified file and output the content of the file
3. Create a file and save it to the specified directory
'''
import them
import sys
import csv #Import csv processing library
import  numpy as  np
import sys


# Traverse the specified directory and display all file names in the directory
def eachFile(filepath):
    pathDir = os.listdir(filepath)
    for allDir in pathDir:
        child = os.path.join('%s%s' % (filepath, allDir))
        #print (child) # .decode('gbk') is to solve the problem of Chinese display garbled characters
        file_name=child
        readFile(file_name)


# read the contents of the file and print
def readFile(filename):
    result.writerow(['name',filename]) # Write the filename to the csv file
    with open(filename,'r')as fp:
        while True: # loop read
            temp = fp.readline()
            if len(temp) == 0:
                break
            else:
                temp_list = list(temp.split())
                #print (temp_list)
                result.writerow(temp_list)
            #result.writerow(temp_list)


#headers=['name','sign', 'v']
f1 = open('quan.csv', 'w',newline='') # Open result.csv in the root directory, you first need to open excel and create an empty .csv file and name it result
result = csv.writer(f1)
#result.writeheader()
filePath = r"E:/yanlifei/weather/progrem/result_hail2/"
eachFile(filePath)