import os
# 创建文件夹
def mkdir(path):
isexists = os.path.exists(path)
if not isexists:
os.mkdir(path)
# 读取文件信息
def openfile(filename):
f = open(filename)
fllist = f.read()
f.close()
return fllist # 返回读取内容
# 写入文件信息
# example1
# w写入,如果文件存在,则清空内容后写入,不存在则创建
f = open(r"./data/test.txt", "w", encoding="utf-8")
print(f.write("测试文件写入"))
f.close
# example2
# a写入,文件存在,则在文件内容后追加写入,不存在则创建
f = open(r"./data/test.txt", "a", encoding="utf-8")
print(f.write("测试文件写入"))
f.close
# example3
# with关键字系统会自动关闭文件和处理异常
with open(r"./data/test.txt", "w") as f:
f.write("hello world!")