python 对TXT文档的操作记录

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一、读取txt的每一行且修改行中指定的内容

import os
import cv2def get_files(path):""" 获取指定路径下所有文件名称 """files = []for filename in os.listdir(path):if os.path.isfile(os.path.join(path, filename)):files.append(filename)return filesdef split_to_name_ext(image_name_ext):name, ext = os.path.splitext(image_name_ext)return name, extdef gen_empty_txt(txt_path):with open(txt_path, "w") as f:passlabels_txt_path='F:/yolov5_train1_8/labels2/'
save_path='F:/yolov5_train1_8/lable_fix/'
txt_path='F:/yolov5_train1_8/lable/Image_20240628141820123.txt'labels_file = get_files(labels_txt_path)for label in labels_file:name, ext = split_to_name_ext(label)print(label)if ext not in ['.txt']:continuelabel_path=labels_txt_path+labelprint(label_path)save_path_new=save_path+labelprint(save_path_new)file_write = open(save_path_new, "w")# with open(label_path, 'r') as file:#     first_line = file.readline()#     print(first_line)with open(label_path, 'r') as file:for line in file:print(line.strip())  words = line.split()print(words)if(len(words)>1):# if(words[0]=="1"):#     # print(words[0])#     words[0]=2if(words[0]=="2"):# print(words[0])words[0]=0print(words)print(type(words))hh=" "nnn=map(str,words)result =hh.join(nnn)# print(result)file_write.writelines(result)file_write.writelines("\n")

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