简单的工资管理系统小程序，只是练手

需求如下：

工资管理系统aaa 100000bbb 80000ccc 50000ddd 30000-----以上是info.txt文件-----实现效果：从info.txt文件中读取员工及其工资信息，最后将修改或增加的员工工资信息也写入原info.txt文件。效果演示：1. 查询员工工资2. 修改员工工资3. 增加新员工记录4. 退出

  1 #!/usr/bin/env python
  2 #-*- coding:utf-8 -*-
  3 # @Time    : 2017/9/21 15:19
  4 # @Author  : lichuan
  5 # @File    : salary.py
  6
  7 import  os
  8
 25
 26 def select(read,write):
 27     i=input("please input the employee name:").strip()
 28     for line in read:
 29         if i == line.split()[0]:
 30             print("%s的工资是：%s" % (line.split()[0],line.split()[1]))
 31             return
 32     print("输入错误,请重试！")
 33     read.seek(0)
 34     select(read, write)
 35
 36 def modify(read,write):
 37     # import os
 38     FLAG_TAG=True
 39     m=input("请输入要修改的员工姓名和工资,以空格分隔").strip().split()
 40     if len(m) !=2:
 41         print("输入错误,请重试,以空格分隔！")
 42         modify(read,write)
 43         return
 44     for i in read:
 45         if i.split()[0] == m[0] and m[1].isdigit():
 46             FLAG_TAG=False
 47             i = "%s %s\n" % (m[0], m[1])
 48         write.write(i)
 49     if FLAG_TAG:
 50         print("输入错误,请重试！")
 51         read.seek(0)
 52         write.seek(0)
 53         modify(read,write)
 54     else:
 55         read.close()
 56         write.close()
 57         os.remove("info.txt")
 58         os.rename(".swap", "info.txt")
 59
 60
 61
 62 def add(read,write):
 63     # import os
 64     a=input("请输入员工姓名和工资，以空格分隔").strip().split()
 65     if len(a) !=2:
 66         print("输入错误,请重试,以空格分隔！")
 67         add(read,write)
 68         return
 69
 70     for i in read:
 71         if i.split()[0] == a[0]:
 72             print("用户已存在，请重新添加新用户！")
 73             read.seek(0)
 74             write.seek(0)
 75             add(read,write)
 76             return
 77         write.write(i)
 78     write.write("\n%s %s" %(a[0],a[1]))
 79     read.close()
 80     write.close()
 81     os.remove("info.txt")
 82     os.rename(".swap","info.txt")
 83
 84
 85
 86 def out(read,write):
 87
 88     print("再见！")
 89     # FLAG_TAG=False
 90
 91 item={
 92     1:"查询员工工资",
 93     2:"修改员工工资",
 94     3:"增加新员工记录",
 95     4:"退出"
 96       }
 97
 98 fun={
 99     1:select,
100     2:modify,
101     3:add,
102     4:out
103 }
104
105 FLAG_TAG=True
106
107 while FLAG_TAG:
108     for i in range(1,5):
109         print("%d, %s" %(i,item[i]))
110     choice=input("请选择：").strip()
111     with open(‘info.txt‘,‘r‘,encoding="utf-8") as r_read,open(‘.swap‘,‘w‘,encoding="utf-8") as r_write:
112         if choice.isdigit() and int(choice) >=1 and int(choice)<4:
113             choice=int(choice)
114             fun[choice](r_read,r_write)
115             continue
116         elif choice.isdigit() and int(choice) == 4:
117             FLAG_TAG=False
118             fun[int(choice)](r_read,r_write)
119             break
120         else:
121             print("wrong input,try again!")
122             continue
123     FLAG_TAG=False