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我想用 c#、c++ 或任何编程语言甚至像 bash 这样的脚本语言创建一个应用程序。
应用程序将要求输入答案,例如 1+1?密码为 2,如果正确则将登录。我不想回答如何编写应用程序,只想回答如何在 Linux 中实现该操作。
我如何在 ubuntu 中实现该功能?(10.04 或 12.04)
提前谢谢你,最好的问候
答案1
代码没有提供使用 256 位密钥通过某些网络基础设施进行身份验证的方法。它只是提供了一个工作计划。OP 必须根据计划完成他的作业……
下面是一段简单的 Python 代码,用于执行一个小型益智游戏,代表了大部分所需逻辑。请参阅代码中的注释,了解有关 Python 的在线资源以及有关每行代码的一些提示。
更新
按照 OP 的要求添加了启动 X 服务器的代码。代码使用了 subprocess 模块。我还没有测试 start_x 函数,但它应该接近所要求的功能。
#!/usr/bin/env python
"""A mini puzzle game using Python 2.7.5 programming language
and the random module from the standard library.
See:
Website http://www.python.org
Python 2.7.5 documentation http://docs.python.org/2/
Online Python books
http://www.diveintopython.net/
http://wiki.python.org/moin/PythonBooks
"""
import random
#import the subprocess module
import subprocess
def do_ask_random_sum_result():
"""Asks for the result of the addition of two random integers"""
# get the two random integers from
# a set of integers {0, 1, 2, 3, 4, 5}
first_random = random.randint(0,5)
second_random = random.randint(0,5)
# perform addition and store the
# result to random_sum
random_sum = first_random + second_random
# print the two random numbers to output
# asking the user for the result of their
# addition
result = input("What is the sum of {0} + {1}? ".format(
first_random, second_random))
# check if the user input matches
# the result
if random_sum == result:
# instead of printing something
# perform the log in to whatever you
# want the user to log in
print("That is correct, the result is: {0}".format(random_sum))
print("Performing log in procedures...")
# Cannot perform the log in since
# the user provided a wrong answer...
else:
print ("Wrong answer!")
def do_login():
"""Performs the login"""
# perform various login actions
#
# and finally try to start X server
try:
# call the start_x function
start_x()
except Exception as e:
print ("Could not start X server")
print ("Error details:\n{err}".format(err=e.message))
def start_x():
"""Starts the x server using the subprocess module
NOT TESTED but it must be something close to this
"""
#declare proc as new process to launch
proc = subprocess.Popen("startx", shell=True, stdout=subprocess.PIPE)
#assign the output of proc to output variable this is optional
#for just to check what x has to say
output = subprocess.stdout.read()
#print the results
print (output)
def main():
"""Application's main entry"""
do_ask_random_sum_result()
if __name__ == '__main__':
main()