Python编写电话薄实现增删改查-Tutorial Python-php.cn

Python编写电话薄实现增删改查

高洛峰

Lepaskan： 2017-03-02 17:19:36

asal

1188 orang telah melayarinya

这篇文章主要为大家详细介绍了Python编写电话薄实现增删改查功能的相关资料，感兴趣的朋友可以参考一下

初学python，写一个小程序练习一下。主要功能就是增删改查的一些功能。主要用到的技术：字典的使用，pickle的使用，io文件操作。代码如下：

import pickle

#studentinfo = {&#39;netboy&#39;: &#39;15011038018&#39;,\
#                &#39;godboy&#39;: &#39;15011235698&#39;}
studentinfo = {}

FUNC_NUM = 5

def write_file(value):
    file = open(&#39;student_info.txt&#39;, &#39;wb&#39;)
    file.truncate()
    pickle.dump(value, file, True)
    file.close

def read_file():
    global studentinfo
    file = open(&#39;student_info.txt&#39;, &#39;rb&#39;)
    studentinfo = pickle.load(file)
    file.close()

def search_student():
    global studentinfo
    name = input(&#39;please input student\&#39;s name:&#39;)
    if name in studentinfo:
        print(&#39;name:%s phone:%s&#39; % (name, studentinfo[name]))
    else:
        print(&#39;has no this body&#39;)

def delete_student():
    global studentinfo
    name = input(&#39;please input student\&#39;s name:&#39;)
    if name in studentinfo:
        studentinfo.pop(name)
        write_file(studentinfo)
    else:
        print(&#39;has no this body&#39;)

def add_student():
    global studentinfo
    name = input(&#39;please input student\&#39;s name:&#39;)
    phone = input(&#39;please input phone:&#39;)
    studentinfo[name] = phone
    write_file(studentinfo)

def modifiy_student():
    global studentinfo
    name = input(&#39;please input student\&#39;s name:&#39;)
    if name in studentinfo:
        phone = input(&#39;please input student\&#39;s phone:&#39;)
        studentinfo[name] = phone
    else:
        print(&#39;has no this name&#39;)

def show_all():
    global studentinfo
    for key, value in studentinfo.items():
        print(&#39;name:&#39; + key + &#39;phone:&#39; + value)

func = {1 : search_student, \
    2 : delete_student, \
    3 : add_student, \
    4 : modifiy_student, \
    5 : show_all}

def menu():
    print(&#39;-----------------------------------------------&#39;);
    print(&#39;1 search student:&#39;)
    print(&#39;2 delete student:&#39;)
    print(&#39;3 add student:&#39;)
    print(&#39;4 modifiy student:&#39;)
    print(&#39;5 show all student&#39;)
    print(&#39;6 exit&#39;)
    print(&#39;-----------------------------------------------&#39;);

def init_data():
    global studentinfo
    file = open(&#39;student_info.txt&#39;, &#39;rb&#39;)
    studentinfo = pickle.load(file)
    #print(studentinfo)
    file.close()

init_data()
while True:
    menu()
    index = int(input())
    if index == FUNC_NUM + 1:
        exit()
    elif index < 1 or index > FUNC_NUM + 1:
        print(&#39;num is between 1-%d&#39; % (FUNC_NUM + 1))
        continue
    #print(index)
    func[index]()

Salin selepas log masuk

以上就是本文的全部内容，希望对大家学习Python程序设计有所帮助。

更多Python编写电话薄实现增删改查相关文章请关注PHP中文网！