import os
#备份文件的路径
file_address = input("输入需要备份文件所在的路径：")
os.chdir(file_address)
#备份文件命名
file_name = input("请输入要备份文件的名字：")
if os.path.isfile(file_name):
new_file_name = file_name + ".backup"
old_file = open(file_name,"r")
new_file = open(new_file_name,"w")
old_file_data = old_file.read()
new_file.write(old_file_data)
old_file.close()
new_file.close()
print("备份成功！")
else:
print("您输入的文件不存在！")
运行结果：
转载于:https://www.cnblogs.com/shuimohei/p/10225907.html
