__author__ = 'water'
contact_list={
    'zhangsan':'18767543229',
     'try': '18767553737',
    'gid': '18767353737',
    'huaishuo': '38767553737',
}
contact_list['try']='hello,world'
print contact_list
print contact_list.keys()
print contact_list.popitem()
print contact_list
# print contact_list.update('gid','18767353737','3333')
print contact_list
# del(contact_list.keys('gid'))