這是一個(gè)簡易的員工管理系統(tǒng),實(shí)現(xiàn)最簡單的功能:
1.登錄用戶密碼驗(yàn)證(錯(cuò)誤三次自動退出)
2.支持文本員工的搜索、添加、刪除、修改
3.一級層級多個(gè)選項(xiàng)、二級層級多個(gè)選項(xiàng),都支持判空、退出、返回上一層級
4.針對刪除和修改有員工當(dāng)前自動搜索到的結(jié)果進(jìn)行參照修改和特殊提醒是否刪除
用到的基礎(chǔ)知識點(diǎn)比較多:
1.計(jì)數(shù)器
2.while True 以及給while做退出層級標(biāo)記
3.if…elif…else 的嵌套使用
4.continue 和 break 以及簡單函數(shù)定義def
5.鍵盤抓取 raw_input 以及通過 os.system(‘clear')來調(diào)用linux中shell下的命令。
6.文本的讀取寫入原理(單讀的不能實(shí)際寫入,只能通過轉(zhuǎn)存文本覆蓋寫入。)
如果是‘a(chǎn)+'則只為讀取并可通過'writelines()'來寫入,是追加寫入
如果是‘w+'則為寫入,可通過‘writelines()'來寫入,是覆蓋寫入
7.列表的構(gòu)成原理,列表的轉(zhuǎn)換,列表的定位以及下標(biāo)獲取 listname.index(line)
8.特別需要注意程序執(zhí)行前后順序以及嚴(yán)格的縮進(jìn)格式
#!/usr/bin/env python # _*_ coding:utf-8 _*_ import sys import os #系統(tǒng)的用戶登錄 #os.system('clear') time = 0 while True: #this is login if time < 3: name = raw_input("\033[1mplease input your login account:").strip() passwd = raw_input("\033[1mplease input your login password:").strip() if len(name) == 0: #.strip()意為去除空格 print("\033[31mIt's not allow empty input!\n") continue elif name == 'zhangjun' and passwd == '123.com': print("\033[32mYour account and password right!") pass else: print("\033[31mYour account or password error!") time += 1 continue break else: print("\033[31mYou are wrong three times, has already quit from the system!") sys.exit() #系統(tǒng)的選擇界面 #os.system('clear') print ('\n') def display(): #進(jìn)行登陸后界面的函數(shù)定義,方便在下面的選用層級后,返回上一層時(shí),依然可以看到選擇大屏。 print("\033[34m########################################################################") print("\033[34m\t######### \033[1;32mWelcome to this employee search system!\033[0;34m #########") print("\033[34m\t\t#################################################") print("\n") print("\033[32m\033[1m\t\t\t1\033[33m\033[1m.Search.(you can search the infomation for employee!)\n") print("\033[32m\033[1m\t\t\t2\033[33m\033[1m.Add.(Add a user into this employee system!)\n") print("\033[32m\033[1m\t\t\t3\033[33m\033[1m.Delete.(Delete a user from this employee system!)\n") print("\033[32m\033[1m\t\t\t4\033[33m\033[1m.Modify.(You can modify something infomation in this employee system!)\n") print("\033[32m\033[1m\t\t\t5\033[33m\033[1m.Quit.(quit this employee system!)\n") print("\n") dict () #指定文件路徑 path = 'D:\Users\Franzhang\employee_list.txt' #定義while層級標(biāo)記break_tag1 = 0 以及登陸初始提示 break_tag1 = 0 while break_tag1 == 0: display() select_input = raw_input ("\033[37m\033[1mplease input you want to select items:").strip () if len(select_input) == 0: continue elif select_input == 'quit': sys.exit () #選項(xiàng)1進(jìn)行模糊搜索 elif int(select_input) == 1: # os.system('clear') break_tag2 = 0 while break_tag2 == 0: content_open = open (path) search_input = raw_input ("please input your need (SEARCH MODE):").strip () for line in content_open: if len (search_input) == 0: continue elif search_input in line: print line else: if search_input == 'all': #展示文本目前所有員工 print line elif search_input == 'quit': break_tag2 = 1 #返回上一層級選擇項(xiàng) #選項(xiàng)2進(jìn)行員工信息添加(其實(shí)是添加了一行列表) elif int(select_input) == 2: # os.system('clear') content_write = file (path, 'a+') #讀入文本 break_tag3 = 0 while break_tag3 == 0: addid_input = raw_input ("please input your need (ADD_ID):").strip () if len (addid_input) == 0: continue elif addid_input == 'quit': break_tag3 = 1 content_write.close () #文本使用完畢后需要關(guān)閉,以免占用內(nèi)存。 break addname_input = raw_input ("please input your need (ADD_NAME):").strip () if len (addid_input) == 0: continue elif addname_input == 'quit': break_tag3 = 1 content_write.close () break addage_input = raw_input ("please input your need (ADD_AGE):").strip () if len (addid_input) == 0: continue elif addage_input == 'quit': break_tag3 = 1 content_write.close () break adddpt_input = raw_input ("please input your need (ADD_DPT):").strip () if len (addid_input) == 0: continue elif adddpt_input == 'quit': break_tag3 = 1 content_write.close () break addphone_input = raw_input ("please input your need (ADD_phone):").strip () if len (addid_input) == 0: continue elif addphone_input == 'quit': break_tag3 = 1 content_write.close () break list_add = [addid_input, '\t', addname_input, '\t', addage_input, '\t', adddpt_input, '\t', addphone_input,'\n'] #將上面的單項(xiàng)錄入寫入列表list_add content_write.writelines (list_add) #將列表追加寫入文本 print("It's already insert the list!") continue #選項(xiàng)3進(jìn)行員工刪除 elif int(select_input) == 3: # os.system('clear') break_tag4 = 0 while break_tag4 == 0: content_opend = open (path) delete_input = raw_input ("please input your need (DELETE):").strip () if len (delete_input) == 0: continue elif delete_input == 'quit': break_tag4 = 1 for line in content_opend: if delete_input in line: print line sure = raw_input ("Are you sure delete this account line ? (yes/no):").strip () if len (sure) == 0: continue elif sure == 'yes': inside = file (path, 'a+') bebe = inside.readlines () #按行讀入文本并轉(zhuǎn)換為列表data data = list (bebe) for i in data: if delete_input in i: w = data.index (i) #獲取輸入的員工在整個(gè)文本列表的位置 del data[w] #刪除單行 data_in = data #轉(zhuǎn)存刪除后的文本列表(這個(gè)時(shí)候被讀取的經(jīng)過刪除后的內(nèi)容還在內(nèi)存中。) inside.close () #轉(zhuǎn)存后在關(guān)閉文本,否則導(dǎo)致轉(zhuǎn)存因提前關(guān)閉而無效。 inside_w = file (path, 'w+') #再次以覆蓋寫入方式讀取文本 inside_w.writelines (data_in) #將剛才轉(zhuǎn)存的文本寫入 inside_w.close () #關(guān)閉文本后會自動保存寫入 break elif sure == 'no': break continue #選項(xiàng)4進(jìn)行員工信息更改(整條員工信息的更改) elif int(select_input) == 4: break_tag5 = 0 while break_tag5 == 0: modify_input = raw_input ("please input your modify item:").strip () if len (modify_input) == 0: continue elif modify_input == 'quit': break content_modify = file (path, 'a+') modify_line = content_modify.readlines () modata = list (modify_line) for i in modata: if modify_input in i: ms = modata.index (i)#獲取輸入變量的最終列表定位 print i mosure = raw_input ("Are you sure to change this user ? (yes/no):").strip () if len (mosure) == 0: continue elif mosure == 'yes': break_tag6 = 0 while break_tag6 == 0: sureid_input = raw_input ("please input you will change this user id: ").strip () if len(sureid_input) == 0: continue elif sureid_input == 'quit': break surename_input = raw_input ("please input you will change this user name:").strip () if len(surename_input) == 0: continue elif surename_input == 'quit': sureid_input = None #此處賦空值,為了防止中途退出,而出現(xiàn)個(gè)別寫入 surename_input = None break sureage_input = raw_input ("please input you will change this user age:").strip () if len(sureage_input) == 0: continue elif sureage_input == 'quit': sureid_input = None surename_input = None sureage_input = None break suredep_input = raw_input ("please input you will change this user department:").strip () if len(suredep_input) == 0: continue elif suredep_input == 'quit': sureid_input = None surename_input = None sureage_input = None suredep_input = None break surephone_input = raw_input ("please input you will change this user phone:").strip () if len(surephone_input) == 0: continue elif surephone_input == 'quit': sureid_input = None surename_input = None sureage_input = None suredep_input = None surephone_input = None break later_sure = [sureid_input, '\t', surename_input, '\t\t', sureage_input, '\t', suredep_input,'\t', surephone_input, '\n']#將上面的值放入列表 del modata[ms] #當(dāng)整個(gè)輸入完成以后再進(jìn)行刪除,防止中途退出未完成狀體的刪除。 modata_one = modata content_modify.close () #這里還是使用了刪除、轉(zhuǎn)存、重新寫入的原理 content_modify_list = file (path, 'w+') content_modify_list.writelines (modata_one) content_modify_list.close () content_modify_list_one = file (path, 'a+') content_modify_list_one.writelines (later_sure) content_modify_list_one.close () break elif mosure == 'quit' or 'no': break elif int (select_input) == 5: print("Thank you for use this employee system, write by franzhang!") sys.exit()
employee_list.txt:
更多學(xué)習(xí)資料請關(guān)注專題《管理系統(tǒng)開發(fā)》。
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