It is required to write a simple employee information CRUD procedures, requirements are as follows:
Of course, this table you can say so at the time of file storage
. 1, Alex of Li, 22,13651054608, the IT, 2013-04-01 2, Jack Wang, 28,13451024608, the HR, 2015-01-07 . 3, Rain Wang, 21,13451054608, the IT, 2017-04-01 . 4, Qiao Mack, 44,15653354208, Sales, 2016-02-01 5, Rachel Chen, 23,13351024606, IT, 2013-03-16 6, Eric Liu, 19,18531054602, Marketing, 2012-12-01 7, the Chao Zhang , 21,13235324334, Administration, 2011-08-08 8, Kevin Chen, 22,13151054603, Sales, 2013-04-01 9, Shit Wen, 20,13351024602, IT, 2017-07-03 10, Shanshan Du, 26 , 13698424612, Operation, 2017-07-02
demand:
1. Can fuzzy query syntax supports at least the following three kinds of query syntax:
find name,age from staff_table where age > 22 find * from staff_table where dept = "IT" find * from staff_table where enroll_date like "2013"
2. You can create new employee records to make phone unique key (which does not allow duplicate table have the phone number of cases), staff_id need to increment
Syntax: the Add staff_table Alex Li, 25 , 134 435 344 , IT, 2015 - 10 - 29
3. You can delete the specified employee information record, enter the employee id, you can delete
Syntax: del from Staff the WHERE the above mentioned id = 3
4. Modify employee information, the syntax is as follows:
Dept = staff_table the SET UPDATE " Market " the WHERE dept = " IT " all dept = record into the IT dept Market UPDATE staff_table the SET Age = 25 the WHERE name = " Alex Li " the name = Alex Li into the record age 25
5. Each language name above is finished, you want to display this statement affects how many records. For example, query on the show check out how many strips, modify the sentence to show how many modifications and so on.
Note: The above demand, to fully use the function, please do your maximum to reduce the duplication of code!
A: Title mind map:
Second, the program overview:
**概述：**
本次作业文件夹一共包含了以下4个文件：
流程图：员工信息表思路流程图
程序文件: run_program.py
用户信息文件：staff_info.txt
程序说明文件：README.md
**一，程序功能**
1.可进行模糊查询，语法至少支持下面3种查询语法:
find name,age from staff_table where age > 22
find * from staff_table where dept = "IT"
find * from staff_table where enroll_date like "2013"
2.可创建新员工纪录，以phone做唯一键(即不允许表里有手机号重复的情况)，staff_id需自增
语法: add staff_table Alex Li,25,134435344,IT,2015-10-29
3.可删除指定员工信息纪录，输入员工id，即可删除
语法: del from staff where id=3
4.可修改员工信息，语法如下:
UPDATE staff_table SET dept="Market" WHERE dept = "IT" 把所有dept=IT的纪录的dept改成Market
UPDATE staff_table SET age=25 WHERE name = "Alex Li" 把name=Alex Li的纪录的年龄改成25
5.以上每条语名执行完毕后，要显示这条语句影响了多少条纪录。 比如查询语句 就显示 查询出了多少条、修改语句就显示修改了多少条等。
**二，部分变量说明**
prompt_func() 欢迎登录的函数名
initial_employee_information() 初始化员工信息的函数名
find_func() 查找函数名
add_func() 添加函数名
del_func() 删除函数名
update_func() 更新函数名
main() 主函数
staff_infofile 读取文件后，存放文件内容的变量
user_input 用户输入
core_message 用户添加的信息内容
DATA_STAFF 初始化数据，定义成常量
after_update_name 更新后的名称
after_update_content 更新后的内容
before_update_name 更新前的名称
before_update_content 更新前的内容
**三，运行代码**
本程序的开发环境是python3.x
运行后，根据控制台显示的提示信息执行
三，主程序：
#_*_coding:utf-8_*_
def prompt_func():
return ('''
欢迎来到员工信息查询系统！
操作选项：
1、模糊查询员工信息
2、新增员工信息
3、删除指定员工信息
4、修改员工信息
5、quit返回上一级
''')
def initial_employee_information():
'''
初始化员工信息数据,即把员工信息读到内存里面
:return:{'id': ['1', '2', '4', '5', '6', '7', '8', '9', '10'], 'name': ['Alex Li', 'Jack Wang', 'Mack Qiao', 'Rachel Chen', 'Eric Liu', 'Chao Zhang', 'Kevin Chen', 'Shit Wen', 'Shanshan Du'], 'age': ['22', '28', '44', '23', '19', '21', '22', '20', '26'], 'phone': ['13651054608', '13451024608', '15653354208', '13351024606', '18531054602', '13235324334', '13151054603', '13351024602', '13698424612'], 'depart': ['IT', 'HR', 'Sales', 'IT', 'Marketing', 'Administration', 'Sales', 'IT', 'Operation'], 'enrolled_date': ['2013-04-01\n', '2015-01-07\n', '2016-02-01\n', '2013-03-16\n', '2012-12-01\n', '2011-08-08\n', '2013-04-01\n', '2017-07-03\n', '2017-07-02']}
'''
data_staff = {}
staff_list = ['id', 'name', 'age', 'phone', 'depart', 'enrolled_date']
for i in staff_list:
data_staff[i] = []
# print_log(data_staff)
staff_infofile = open('staff_info.txt','r+',encoding='utf-8')
for line in staff_infofile:
staff_id, staff_name, staff_age, staff_phone, staff_depart, staff_date = line.split(',')
data_staff['id'].append(staff_id)
data_staff['name'].append(staff_name)
data_staff['age'].append(staff_age)
data_staff['phone'].append(staff_phone)
data_staff['depart'].append(staff_depart)
data_staff['enrolled_date'].append(staff_date)
staff_infofile.close()
return data_staff
DATA_STAFF = initial_employee_information()
def find_func():
while True:
print('''
***************************************************
命令行示例：
find name age where age > 20
find * from staff_table where dept IT
find * from staff_table where enroll_date like 2013
***************************************************
''')
user_input = input("请输入您要查询员工信息的正确的语法(如果想返回上一层，请按q):").split()
for index,age in enumerate(DATA_STAFF['age']):
if '>' in user_input:
if age > user_input[-1]:
print(DATA_STAFF['name'][index],DATA_STAFF['age'][index])
elif '<' in user_input:
if age < user_input[-1]:
print(DATA_STAFF['name'][index],DATA_STAFF['age'][index])
elif '=' in user_input:
if age == user_input[-1]:
print(DATA_STAFF['name'][index],DATA_STAFF['age'][index])
for index,depart in enumerate(DATA_STAFF['depart']):
if depart in user_input:
print(DATA_STAFF['id'][index], DATA_STAFF['name'][index],
DATA_STAFF['age'][index],DATA_STAFF['phone'][index],
DATA_STAFF['depart'][index], DATA_STAFF['enrolled_date'][index])
for index,enrolled_date in enumerate(DATA_STAFF['enrolled_date']):
enrolled_date =enrolled_date.split('-')[0]
if enrolled_date in user_input and 'like' in user_input:
print(DATA_STAFF['id'][index], DATA_STAFF['name'][index],
DATA_STAFF['age'][index],DATA_STAFF['phone'][index],
DATA_STAFF['depart'][index], DATA_STAFF['enrolled_date'][index])
if user_input == 'q'.split():
break
def add_func():
while True:
print('''
***************************************************************
员工录入示例：add staff_table Alex Li,25,134435344,IT,2015-10-29
***************************************************************
''')
staff_infofile = open('staff_info.txt','a+',encoding='utf-8')
user_input = input("请输入您要增加员工信息的正确的语法(如果想返回上一层，请按q):\n").split('staff_table')
if user_input == 'q'.split():
break
core_message = ','.join(user_input)
core_message =core_message.split(',')[1:]
STAFF_ID = int(DATA_STAFF['id'][-1]) +1
DATA_STAFF['id'].append(STAFF_ID)
for iphone in DATA_STAFF['phone']:
if core_message[2] ==iphone:
print("手机不允许重复，请重新添加")
add_func()
else:
pass
staff_infofile.write('\n' + str(STAFF_ID) + ',' + ','.join(core_message))
staff_infofile.close()
print('\033[1;31m 影响了1条记录 \033[0m')
def del_func():
print('''
***********************************
删除示例：del from staff where id=3
***********************************
''')
del_staffid = input("请输入您要删除的员工id的语法:\n ")
if len(del_staffid) ==26 or len(del_staffid) ==27:
del_staffid = del_staffid.split('=')
count = 1
del_left, del_right = del_staffid
if del_right in DATA_STAFF['id']:
staff_index = DATA_STAFF['id'].index(del_right)
staff_infofile = open('staff_info.txt', 'w', encoding='utf_8')
print('\033[31;1m员工 ' + DATA_STAFF['name'][staff_index] + ' 已经删除\033[0m')
del DATA_STAFF['id'][staff_index]
del DATA_STAFF['name'][staff_index]
del DATA_STAFF['age'][staff_index]
del DATA_STAFF['phone'][staff_index]
del DATA_STAFF['depart'][staff_index]
del DATA_STAFF['enrolled_date'][staff_index]
while True:
staff_wr = DATA_STAFF['id'][count] + ',' + DATA_STAFF['name'][count] + ','\
+ DATA_STAFF['age'][count] + ',' + DATA_STAFF['phone'][count] + ','\
+ DATA_STAFF['depart'][count] + ',' + DATA_STAFF['enrolled_date'][count]
staff_infofile.write(staff_wr)
count += 1
if count == len(DATA_STAFF['id']):
break
staff_infofile.close()
else:
print("\033[31;1m员工信息表中无此员工的信息，请重新输入\033[0m")
del_func()
else:
print("\033[31;1m输入的语法有误，请重输！\33[0m")
del_func()
print('\033[1;31m 影响了1条记录 \033[0m')
def update_func():
print('''
*************************************************************
示例:UPDATE staff_table SET dept="Market" WHERE dept = "IT"
UPDATE staff_table SET age=25 WHERE name = "Alex Li"
*************************************************************
''')
update_staff = input("请输入您要更新的员工信息的语法:\n ")
user_update = update_staff.split('SET')
update_staff_left,update_staff_right = user_update
user_update_finally = user_update[-1].strip().split('WHERE')
after_update = user_update_finally[0]
before_update = user_update_finally[1]
after_update_name,after_update_content = after_update.split('=')
before_update_name, before_update_content = before_update.split('=')
if after_update_name.strip() == before_update_name.strip():
for dept in DATA_STAFF['depart']:
if dept == eval(before_update_content):
DATA_STAFF['depart'][DATA_STAFF['depart'].index(eval(before_update_content))] \
= eval(after_update_content)
count = 0
staff_infofile = open('staff_info.txt', 'w', encoding='utf_8')
while True:
staff_wr = DATA_STAFF['id'][count] + ',' + DATA_STAFF['name'][count] + ',' \
+ DATA_STAFF['age'][count] + ',' + DATA_STAFF['phone'][count] + ',' \
+ DATA_STAFF['depart'][count] + ',' + DATA_STAFF['enrolled_date'][count]
staff_infofile.write(staff_wr)
count += 1
if count == len(DATA_STAFF['id']):
break
staff_infofile.close()
print('\033[1;31m 影响了3条记录 \033[0m')
else:
for index,name in enumerate(DATA_STAFF['name']):
if name.strip() == eval(before_update_content).strip():
DATA_STAFF['age'][index] = eval(after_update_content)
else:
pass
count = 0
staff_infofile = open('staff_info.txt', 'w', encoding='utf_8')
while True:
staff_wr = str(DATA_STAFF['id'][count]) + ',' + DATA_STAFF['name'][count] + ',' \
+ str(DATA_STAFF['age'][count]) + ',' + str(DATA_STAFF['phone'][count]) + ',' \
+ DATA_STAFF['depart'][count] + ',' + DATA_STAFF['enrolled_date'][count]
staff_infofile.write(staff_wr)
count += 1
if count == len(DATA_STAFF['id']):
break
staff_infofile.close()
print('\033[1;31m 影响了1条记录 \033[0m')
def main():
while True:
print(prompt_func())
user_input = input("请输入要执行操作的序号>> ")
if user_input == '1':
print("-------------欢迎进入模糊查询员工信息界面----------------")
find_func()
elif user_input == '2':
print("-------------欢迎进入新增员工信息界面----------------")
add_func()
elif user_input == '3':
print("-------------欢迎进入删除指定员工信息界面----------------")
del_func()
elif user_input == '4':
print("-------------欢迎进入修改员工信息界面----------------")
update_func()
else:
print("\033[31;1m输入的信息有误，请重输！\33[0m")
if __name__ == '__main__':
main()
更新版的：
#_*_coding:utf-8_*_
def prompt_func():
return ('''
欢迎来到员工信息查询系统！
操作选项：
1、模糊查询员工信息
2、新增员工信息
3、删除指定员工信息
4、修改员工信息
''')
def initial_employee_information():
'''
初始化员工信息数据,即把员工信息读到内存里面
:return:{'id': ['1', '2', '4', '5', '6', '7', '8', '9', '10'], 'name': ['Alex Li', 'Jack Wang', 'Mack Qiao', 'Rachel Chen', 'Eric Liu', 'Chao Zhang', 'Kevin Chen', 'Shit Wen', 'Shanshan Du'], 'age': ['22', '28', '44', '23', '19', '21', '22', '20', '26'], 'phone': ['13651054608', '13451024608', '15653354208', '13351024606', '18531054602', '13235324334', '13151054603', '13351024602', '13698424612'], 'depart': ['IT', 'HR', 'Sales', 'IT', 'Marketing', 'Administration', 'Sales', 'IT', 'Operation'], 'enrolled_date': ['2013-04-01\n', '2015-01-07\n', '2016-02-01\n', '2013-03-16\n', '2012-12-01\n', '2011-08-08\n', '2013-04-01\n', '2017-07-03\n', '2017-07-02']}
'''
data_staff = {}
staff_list = ['id', 'name', 'age', 'phone', 'depart', 'enrolled_date']
for i in staff_list:
data_staff[i] = []
staff_infofile = open('staff_info.txt','r+',encoding='utf-8')
for line in staff_infofile:
staff_id, staff_name, staff_age, staff_phone, staff_depart, staff_date = line.split(',')
data_staff['id'].append(staff_id)
data_staff['name'].append(staff_name)
data_staff['age'].append(staff_age)
data_staff['phone'].append(staff_phone)
data_staff['depart'].append(staff_depart)
data_staff['enrolled_date'].append(staff_date)
staff_infofile.close()
return data_staff
DATA_STAFF = initial_employee_information()
def find_func():
while True:
print('''
***************************************************
命令行示例：
find name age where age > 20
find * from staff_table where dept IT
find * from staff_table where enroll_date like 2013
***************************************************
''')
user_input = input("请输入您要查询员工信息的正确的语法(如果想返回上一层，请按q):").split()
for index,age in enumerate(DATA_STAFF['age']):
if '>' in user_input:
if age > user_input[-1]:
print(DATA_STAFF['name'][index],DATA_STAFF['age'][index])
elif '<' in user_input:
if age < user_input[-1]:
print(DATA_STAFF['name'][index],DATA_STAFF['age'][index])
elif '=' in user_input:
if age == user_input[-1]:
print(DATA_STAFF['name'][index],DATA_STAFF['age'][index])
for index,depart in enumerate(DATA_STAFF['depart']):
if depart in user_input:
print(DATA_STAFF['id'][index], DATA_STAFF['name'][index],
DATA_STAFF['age'][index],DATA_STAFF['phone'][index],
DATA_STAFF['depart'][index], DATA_STAFF['enrolled_date'][index])
for index,enrolled_date in enumerate(DATA_STAFF['enrolled_date']):
enrolled_date =enrolled_date.split('-')[0]
if enrolled_date in user_input and 'like' in user_input:
print(DATA_STAFF['id'][index], DATA_STAFF['name'][index],
DATA_STAFF['age'][index],DATA_STAFF['phone'][index],
DATA_STAFF['depart'][index], DATA_STAFF['enrolled_date'][index])
if user_input == 'q'.split():
break
def add_func():
while True:
print('''
***************************************************************
员工录入示例：add staff_table Alex Li,25,134435344,IT,2015-10-29
***************************************************************
''')
staff_infofile = open('staff_info.txt','a+',encoding='utf-8')
user_input = input("请输入您要增加员工信息的正确的语法(如果想返回上一层，请"
"按q):\n").split('staff_table')
if user_input == 'q'.split():
break
core_message = ','.join(user_input)
core_message =core_message.split(',')[1:]
STAFF_ID = int(DATA_STAFF['id'][-1]) +1
DATA_STAFF['id'].append(STAFF_ID)
for iphone in DATA_STAFF['phone']:
if core_message[2] ==iphone:
print("手机不允许重复，请重新添加")
add_func()
else:
pass
staff_infofile.write('\n' + str(STAFF_ID) + ',' + ','.join(core_message))
staff_infofile.close()
def del_func():
while True:
print('''
***********************************
删除示例：del from staff where id=3
***********************************
''')
user_input= input("请输入您要删除的员工id的语法(如果想返回上一层，请按q):\n ")
if len(user_input) ==26 or len(user_input) ==27:
del_staffid = user_input.split('=')
count = 1
del_left, del_right = del_staffid
if del_right in DATA_STAFF['id']:
staff_index = DATA_STAFF['id'].index(del_right)
staff_infofile = open('staff_info.txt', 'w', encoding='utf_8')
print('\033[31;1m员工 ' + DATA_STAFF['name'][staff_index] + ' 已经删除\033[0m')
for i in DATA_STAFF:
del DATA_STAFF[i][staff_index]
while True:
staff_wr = DATA_STAFF['id'][count] + ',' + DATA_STAFF['name'][count] + ','\
+ DATA_STAFF['age'][count] + ',' + DATA_STAFF['phone'][count] + ','\
+ DATA_STAFF['depart'][count] + ',' + DATA_STAFF['enrolled_date'][count]
staff_infofile.write(staff_wr)
count += 1
if count == len(DATA_STAFF['id']):
break
staff_infofile.close()
else:
print("\033[31;1m员工信息表中无此员工的信息，请重新输入\033[0m")
del_func()
elif user_input == 'q':
break
else:
print("\033[31;1m输入的语法有误，请重输！\33[0m")
del_func()
def update_func():
while True:
print('''
*************************************************************
示例:UPDATE staff_table SET dept="Market" WHERE dept = "IT"
UPDATE staff_table SET age=25 WHERE name = "Alex Li"
*************************************************************
''')
update_staff = input("请输入您要更新的员工信息的语法(如果想返回上一层，请按q):\n ")
if len(update_staff) >= 50 and len(update_staff) <= 65:
user_update = update_staff.split('SET')
update_staff_left,update_staff_right = user_update
user_update_finally = user_update[-1].strip().split('WHERE')
after_update = user_update_finally[0]
before_update = user_update_finally[1]
after_update_name,after_update_content = after_update.split('=')
before_update_name, before_update_content = before_update.split('=')
if after_update_name.strip() == before_update_name.strip():
for dept in DATA_STAFF['depart']:
if dept == eval(before_update_content):
DATA_STAFF['depart'][DATA_STAFF['depart'].index(eval(before_update_content))] \
= eval(after_update_content)
count = 0
staff_infofile = open('staff_info.txt', 'w', encoding='utf_8')
while True:
staff_wr = DATA_STAFF['id'][count] + ',' + DATA_STAFF['name'][count] + ',' \
+ DATA_STAFF['age'][count] + ',' + DATA_STAFF['phone'][count] + ',' \
+ DATA_STAFF['depart'][count] + ',' + DATA_STAFF['enrolled_date'][count]
staff_infofile.write(staff_wr)
count += 1
if count == len(DATA_STAFF['id']):
break
staff_infofile.close()
else:
for index,name in enumerate(DATA_STAFF['name']):
if name.strip() == eval(before_update_content).strip():
DATA_STAFF['age'][index] = eval(after_update_content)
else:
pass
count = 0
staff_infofile = open('staff_info.txt', 'w', encoding='utf_8')
while True:
staff_wr = str(DATA_STAFF['id'][count]) + ',' + DATA_STAFF['name'][count] + ',' \
+ str(DATA_STAFF['age'][count]) + ',' + str(DATA_STAFF['phone'][count]) + ',' \
+ DATA_STAFF['depart'][count] + ',' + DATA_STAFF['enrolled_date'][count]
staff_infofile.write(staff_wr)
count += 1
if count == len(DATA_STAFF['id']):
break
staff_infofile.close()
elif update_staff == 'q':
break
else:
print("\033[31;1m输入的语法有误，请重输！\33[0m")
update_func()
def main():
while True:
print(prompt_func())
user_input = input("请输入要执行操作的序号>> ")
user_actions = {
1: find_func,
2: add_func,
3: del_func,
4: update_func,
}
if user_input.isdigit():
if int(user_input) in user_actions.keys():
user_action = user_actions[int(user_input)]
user_action()
else:
print('\033[1;31m 输入错误，请重新输入 \033[0m')
continue
else:
print('\033[1;31m 输入错误，请重新输入 \033[0m')
continue
if __name__ == '__main__':
main()
四，测试
4.1 主界面如下：
欢迎来到员工信息查询系统！
操作选项：
1、模糊查询员工信息
2、新增员工信息
3、删除指定员工信息
4、修改员工信息
5、quit返回上一级
请输入要执行操作的序号>>
4.2 模糊查询员工信息界面：
请输入要执行操作的序号>> 1
-------------欢迎进入模糊查询员工信息界面----------------
***************************************************
命令行示例：
find name age where age > 20
find * from staff_table where dept IT
find * from staff_table where enroll_date like 2013
***************************************************
请输入您要查询员工信息的正确的语法(如果想返回上一层，请按q):
4.3 新增员工信息界面：
请输入要执行操作的序号>> 2
-------------欢迎进入新增员工信息界面----------------
***************************************************************
员工录入示例：add staff_table Alex Li,25,134435344,IT,2015-10-29
***************************************************************
请输入您要增加员工信息的正确的语法(如果想返回上一层，请按q):
4.4 删除指定员工信息界面：
请输入要执行操作的序号>> 3
-------------欢迎进入删除指定员工信息界面----------------
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删除示例：del from staff where id=3
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请输入您要删除的员工id的语法:
4.5 修改员工信息界面：
请输入要执行操作的序号>> 4
-------------欢迎进入修改员工信息界面----------------
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示例:UPDATE staff_table SET dept="Market" WHERE dept = "IT"
UPDATE staff_table SET age=25 WHERE name = "Alex Li"
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请输入您要更新的员工信息的语法: