python之路之员工管理系统
1.程序说明：Readme.cmd
1.程序文件：info_management.py user_info
2.程序文件说明：info_management.py-主程序 user_info-存放员工数据
3.python版本：python-3.5.3
4.程序使用：将info_management.py和user_info放到同一目录下，执行python info_management.py
5.程序解析：
【0.增加员工信息】此处以名字name作为主键 增加输入格式，以-隔开:名字-年龄-电话-职位 （直接对文件的操作）
【1.删除员工信息】直接输入员工的id即可删除 （直接对文件的操作）
【2.修改员工信息】输入员工名字，修改原内容，新内容 格式：员工名字 修改原内容 新内容 （直接对文件的操作）
【3.查询员工信息】使用动态代码对字典格式实现多种操作查询 （字典，exec）
【4.退出员工系统】
6.程序执行结果：请亲自动手执行或者查看我的博客
7.程序博客地址：http://www.cnblogs.com/chenjw-note/p/7866737.html2.程序代码：info_management.py
#!/usr/bin/env python
# _*_ coding: utf-8 _*_
# author：chenjianwen
# email：[email protected]
import json,time,re,os user_info = {}
print_out = 'print(user_info[name]["id"],user_info[name]["name"],user_info[name]["age"],user_info[name]["phone"],user_info[name]["dept"],user_info[name]["enroll_date"])'
count = 0 ##读取文件，把用户信息生成字典格式
def read_file_to_info():
with open('user_info','r') as f_r:
for line in f_r:
line = line.rstrip('\n') ##去除空行
if line:
line = line.strip()
id = line.split(' ')[0]
name = line.split(' ')[1]
age = line.split(' ')[2]
phone = line.split(' ')[3]
dept = line.split(' ')[4]
enroll_date = line.split(' ')[5]
#global user_info
user_info[name] = {
'id':'%s'%id,
'name':'%s'%name,
'age':'%s'%age,
'phone':'%s'%phone,
'dept':'%s'%dept,
'enroll_date':'%s'%enroll_date
} ##写入文件函数
def write_file(*args,**kwargs):
with open('user_info', 'a+') as f_w:
f_w.write(*args,**kwargs) ##查询函数1
def select_info_number(key,parallel,number):
cmd = 'if int(user_info[name]["%s"]) %s %s:%s;global count;count = count + 1'%(key,parallel,number,print_out)
start_time = time.time()
for name in user_info:
exec(cmd)
end_time = time.time()
use_time = end_time - start_time
print("%s row in set (%s sec)"%(count,use_time))
return True ##查询函数2
def select_info_message(message,parallel,key):
cmd = 'if "%s" %s user_info[name]["%s"]:%s;global count;count = count + 1'%(message,parallel,key,print_out)
start_time = time.time()
for name in user_info:
exec(cmd)
end_time = time.time()
use_time = end_time - start_time
print("%s row in set (%s sec)" %(count,use_time))
return True ##增加函数
def add_person_info():
#print(user_info)
id = len(user_info) + 1
print("此处以名字name作为主键")
pinfo = input("输入员工:名字-年龄-电话-职位：")
name, age, phone, dept = pinfo.split('-')[0],pinfo.split('-')[1],pinfo.split('-')[2],pinfo.split('-')[3]
enroll_date = time.strftime("%Y-%m-%d")
if name in user_info:
print("该员工已存在..")
exit()
else:
data = '\n%s %s %s %s %s %s'%(id,name,age,phone,dept,enroll_date)
write_file(data)
read_file_to_info()
return True ##删除函数
def del_person_info():
id = input("请输入删除的员工id:")
f_r = open('user_info', mode='r', encoding='utf-8')
f_w = open('user_info1', mode='w+', encoding='utf-8')
for line in f_r:
line = line.strip()
if line.split(' ')[0] == id:
pass
else:
f_w.write(line + '\n')
f_r.close()
f_w.close()
os.remove('user_info')
os.rename('user_info1', 'user_info')
read_file_to_info()
return True ##修改函数
def replace_person_info():
message = input("请输入：员工名字 修改原内容 新内容：")
name = message.split(' ')[0]
old_dept = message.split(' ')[1]
new_dept = message.split(' ')[2] f_r = open('user_info',mode='r',encoding='utf-8')
f_w = open('user_info1', mode='w+', encoding='utf-8')
for line in f_r:
line = line.strip()
if name in line:
line = line.replace(old_dept,new_dept)
f_w.write(line + '\n')
f_r.close()
f_w.close()
os.remove('user_info')
os.rename('user_info1', 'user_info')
read_file_to_info()
return True if __name__ == '__main__':
while True:
read_file_to_info()
ops = ['增加员工信息','删除员工信息','修改员工信息','查询员工信息','退出员工系统']
for key,i in enumerate(ops):
print("【%s.%s】"%(key,i),end=' ')
print()
ops_key = int(input("请输入你需要的操作序号："))
if ops_key == 0:
if add_person_info():
print("执行成功！")
continue
else:
print('执行失败！')
continue
elif ops_key == 1:
if del_person_info():
print("执行成功！")
continue
else:
print('执行失败！')
continue
elif ops_key == 2:
if replace_person_info():
print("执行成功！")
continue
else:
print('执行失败！')
continue
elif ops_key == 3:
print("请输入你的查询语句：【格式：key action(>,<,==,in) 值,例如：age > 22 或 phone in 1365】：")
print("目前可使用的key有：name,enroll_date,age,id,phone,dept")
select_message = input("请输入你的查询语句：")
key = select_message.split(' ')[0]
parallel = select_message.split(' ')[1]
message = select_message.split(' ')[2] if parallel == '==':
if select_info_message(message, parallel, key):
count = 0
print("执行成功！")
continue
else:
print('执行失败！')
continue
elif not re.findall('[a-zA-Z]+',parallel):
if select_info_number(key, parallel, message):
count = 0
print("执行成功！")
continue
else:
print('执行失败！')
continue
else:
if select_info_message(message, parallel, key):
count = 0
print("执行成功！")
continue
else:
print('执行失败！')
continue
elif ops_key == 4:
print("退出系统成功！")
exit()
else:
print("你的输入有误，请重新输入...")
3.程序附件-数据库：user_info
1 admin 22 136510 IT 2017-04-01
2 jiwn1 23 136510 op 2017-04-01
3 jiwn2 23 188250 ops 2017-11-20
4 jiwn3 23 188250 ops 2017-11-20
5 jiwn4 23 188250 IIIIIIIIITTTTTTTTT 2017-11-20
6 jiwn5 24 188250 OPS 2017-11-20
7 jiwn6 25 188262 OPS 2017-11-20
8 chenjianwen01 22 188262 IT 2017-11-20
4.程序执行输出