如何将一些特定的.jpg文件复制到另一个目录？

Question

我想将一些特定的jpg文件复制到另一个目录，我不明白为什么它不起作用？我有很多图像，目前只想对某些类别进行排序，只有那些开头名称分别为15_0_xxx.jpg的类别15_1_xxx.jpg

import cv2

import sys

import os

import shutil 

from os import listdir

from os.path import isfile, join

mypath = "c:/Users/Harum/Desktop/make dir/"

file_names = [ f for f in listdir(mypath) if isfile(join(mypath, f))]

print(str(len(file_names))+ ' images loaded')

cont_M =0

cont_F =0

m_age = "c:/Users/Harum/Desktop/make dir/M_15/"

f_age = "c:/Users/Harum/Desktop/make dir/F_15/"

input_m = []

input_mS =[]

input_fS =[]

input_f = []

def getZeros(number):

    if(number > 10 and number <100):

        return "0"

    if(number < 10):

        return "00"

    else:

        return ""

for i, file in enumerate(file_names):

    if file_names[i][0] == "15_0":

        cont_M +=1

        image = cv2.imread(mypath+file)

        input_m.append(image)

        input_mS.append(0)

        zeros = getZeros(cont_M)

        cv2.imwrite(m_age +"m_age"+str(zeros)+ str(cont_M)+ ".jpg",image)

    if file_names[i][0] == "15_1":

        cont_F +=1

        image = cv2.imread(mypath+file)

        input_f.append(image)

        input_fs.append(1)

        cv2.imwrite(f_age+"F_age"+str(zeros)+ str(cont_M)+ ".jpg",image) 

Answer 1

编辑：忘记了复制部分。你可以使用 shutil 来做到这一点使用 glob 和 os 会做得更好：from shutil import copyfileimport globimport osmypath = "c:/Users/Harum/Desktop/make dir/"destination_path = "c:/Users/Harum/Desktop/copy/"# using fstrings to add wildcard character to consider all files. You could add a## file extension after, as in f"{mypath}15_*.jpg"file_names = glob.glob(f"{mypath}15_*")# skip the middle to the ifs# (...)# removed the enumerate as it doesn't seems like you're using the positional list indexfor file in file_names:&nbsp; &nbsp; # getting only the filename (with extension)&nbsp; &nbsp; file_name = os.path.basename(file)&nbsp; &nbsp; # using the str().startswith() to check True or False&nbsp; &nbsp; if file_name.startswith("15_0"):&nbsp; &nbsp; &nbsp; &nbsp; cont_M +=1&nbsp; &nbsp; &nbsp; &nbsp; copyfile(file, f"{destination_path}{file_name}")&nbsp; &nbsp; &nbsp; &nbsp; # (...)&nbsp; &nbsp; elif file_name.startswith("15_1"):&nbsp; &nbsp; &nbsp; &nbsp; cont_F +=1&nbsp; &nbsp; &nbsp; &nbsp; copyfile(file, f"{destination_path}{file_name}")&nbsp; &nbsp; &nbsp; &nbsp; #(...)