我试图存储对象,并成功地做到了..但我有问题,当树保存它..错误如下所示
在人.py在
class Person:
def __init__(self, name, age, pay=0, job=None):
self.name = name
self.age = age
self.pay = pay
self.job = job
def lastname(self):
return self.name.split()[-1]
def giveraise(self,percent):
#return self.pay *= (1.0 + percent)
self.pay *= (1.0 + percent)
return self.pay
在经理.py在
^{pr2}$更新数据库_类.py在
import shelve
from Person import Person
from Manager import Manager
bob = Person('Bob Smith', 42, 30000, 'software')
sue = Person('Sue Jones', 45, 40000, 'hardware')
tom = Manager('Tom Doe', 50, 50000)
db = shelve.open('class-shelve')
db['bob'] = bob
db['sue'] = sue
db['tom'] = tom
db.close()
检索对象的代码。。 转储数据库_类.py在
import shelve
db = shelve.open('class-shelve')
for key in db:
print(key, '=>\n ', db[key].name, db[key].pay)
bob = db['bob']
print(bob.lastName())
print(db['tom'].lastName())
错误: C: \Python27\Basics>;dump\db_类.py 鲍勃=>; 鲍勃·史密斯30000 苏=>; 苏·琼斯40000 汤姆=>; 汤姆·多伊50000 回溯(最近一次呼叫): 文件“C:\Python27\Basics\dump\db_类.py“,第8行,英寸 打印(鲍勃.姓()) AttributeError:“Person”对象没有属性“lastName”
Python区分大小写。您调用
bob.lastName()
,但是Person
方法是.lastname()
。错误消息试图告诉您:相关问题 更多 >
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