看了一些基础的 Python 新手教程后，深深感觉到 Python 的简洁与强大，这是我的第一个 Python Demo。下面是完整代码与执行截图。
代码：
# encoding: utf-8
'''
@author: Techzero
@email: techzero@163.com
@time: 2014-4-30 下午1:31:04
'''
import os
import sys
import cPickle as p
class Person:
def __init__(self, name, email):
'''Initializes the person's data.'''
self.name = name
self.email = email
def create():
"""Create new person and input email"""
global Persons
try:
name = raw_input("Please input name:")
while Persons.has_key(name):
name = raw_input("This name has already exist, please input new name:")
email = raw_input("Please input Email:")
except EOFError:
print '\nEOF Error'
sys.exit()
Persons[name] = email
print ""
def delete():
"""Search person by name and delete"""
global Persons
try:
name = raw_input("Please input the person's name you want to delete:")
except EOFError:
print '\nEOF Error'
sys.exit()
if Persons.has_key(name):
del Persons[name]
save()
else:
print "No one called",name,"!\n"
def modify():
"""Search person by name and modify email"""
global Persons
try:
name = raw_input("Please input the person's name you want to modify:")
if Persons.has_key(name):
del Persons[name]
email = raw_input("Please input new email:")
Persons[name] = email
save()
else:
print "No one called",name,"!\n"
except EOFError:
print '\nEOF Error'
sys.exit()
def save():
"""Save Persons to file"""
global Persons
File = 'person.dat'
f = file(File, 'w')
p.dump(Persons, f)
f.close()
print "Operation Done!\n"
def read():
"""Read person from file"""
global Persons
File = 'person.dat'
if os.path.exists(File):
f = file(File)
Persons = p.load(f)
f.close()
else:
File = 'person.dat'
f = file(File, 'w')
f.close()
def display():
"""Display all persons in the dictionary"""
global Persons
for name, email in Persons.items():
print " ",name,email
print ""
def search():
"""Search person by name"""
global Persons
try:
name = raw_input("Please input the person's name you want to search:")
except EOFError:
print '\nEOF Error'
sys.exit()
if Persons.has_key(name):
print " ",name,Persons[name],"\n"
else:
print "No one called",name,"!\n"
def menu():
"""Display a menu to choose operation"""
choose = "0"
while True:
#i = os.system("cls")
print'''1----Create
2----Delete
3----Modify
4----Search
5----Display
6----Exit'''
try:
choose = raw_input("Please choose an item(1-6):")
except EOFError:
print '\nEOF Error'
sys.exit()
if choose == "1":
create()
elif choose == "2":
delete()
elif choose == "3":
modify()
elif choose == "4":
search()
elif choose == "5":
display()
elif choose == "6":
print "Thanks for using!"
sys.exit()
else:
print ""
Persons = {}
read()
menu()
执行截图
本文固定链接：
http://www.itechzero.com/coding/python/python-development-with-eclipse-pydev-install-tutorial/
，转载请注明出处。
