1、编写文件copy工具
src_file=input('源文件路径>>: ').strip()
dst_file=input('目标文件路径>>: ').strip()
with open(r'{}'.format(src_file),mode='rt',encoding='utf-8') as f1,open(r'{}'.format(dst_file),mode='wt',encoding='utf-8') as f2:
res=f1.read()
f2.write(res)
2、编写登录程序,账号密码来自于文件
inp_username=input('your name>>: ').strip()
inp_password=input('your password>>: ').strip()
with open('user.txt',mode='rt',encoding='utf-8') as f:
for line in f:
username,password=line.strip().split(':')
if inp_username == username and inp_password == password:
print('login successful')
break
else:
print('账号或密码错误')
3、编写注册程序,账号密码来存入文件
name=input('your name>>: ')
pwd=input('your name>>: ')
with open('db.txt',mode='at',encoding='utf-8') as f:
f.write('{}:{}
'.format(name,pwd))