开始表演:
import os
# join 函数
Path1 = 'home'
Path2 = 'develop'
Path3 = 'code'
Path10 = Path1 + Path2 + Path3
Path20 = os.path.join(Path1,Path2,Path3)
# 输入结果:
# print('Path10',Path10)
# print('Path20',Path20)
# os.path.join() 将分离的部分合成一个整体
filename = os.path.join('/home/ubuntu/python_coding','split_func')
# dirname 函数
ls = os.path.dirname(__file__)
print(ls)
# 输入结果:当前的绝对路径
# exists 函数
os.path.exists('common/sss')
# print(ll) # 返回布尔值 True False
# 联合应用
# 可以作为判定:
dir_name = "./images"
if not os.path.exists(dir_name): # 如果不存在这个path文件
os.makedirs(dir_name, exist_ok=True) # 那就新增一个path文件:可以递归的创建多个文件夹
dir_name = "./images/imgs2"
if not os.path.exists(dir_name): # 判断一个文件夹是否存在,如果不存在就新建它,如果已经存在就跳过
os.mkdir(dir_name)
# os.path.split()返回文件的路径和文件名
(dirname, filename) = os.path.split('/home/ubuntu/python_coding/split_func/split_function.py')
print('dirname:', dirname)
print('filename:', filename)
# 输出为:
# dirname: /home/ubuntu/python_coding/split_func
# filename: split_function.py
# os.path.splitext() 将文件名和扩展名分开
(fname, fename) = os.path.splitext('/home/ubuntu/python_coding/split_func/split_function.py')
print('fname:', fname)
print('fename:', fename)
# 输出结果:
# fname: /home/ubuntu/python_coding/split_func/split_function
# fename: .py
# 有关于文件的操作类
import os
import json
class FileOperate:
def writefile(self, file, file_type, file_text):
if file_type in ('json', 'txt', 'csv'):
filedir = os.path.dirname(file)
if not os.path.exists(filedir): # 如果不存在,那就新建一个文件
os.makedirs(filedir)
fileojb = open(file, 'a+', encoding='utf-8')
fileojb.write(file_text + 'n')
return fileojb
def readfile(self, filepath, file_type):
if file_type in "json":
with open(filepath, 'r', encoding='UTF-8-sig') as f:
json_file = json.load(f)
return json_file
if file_type in "txt":
with open(filepath, 'r', encoding='UTF-8-sig') as f:
return f
if __name__ == '__main__':
from common.config import get_value
get_path = get_value('file', 'file_path')
timestr = datetime.datetime.now().strftime('%Y_%m_%d_%H_%M_%S')
txt_title = "Step" + "Description" + "CaseResult"
fileobj = FileOperate().writefile(get_path+timestr+".txt", 'txt', txt_title)



