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给初级投资者的12条建议

It was written by an 8-year-old named Danny Dutton, who lives in Chula Vista , CA . He wrote it for his third grade homework assignment, to 'explain God.' I wonder if any of us could have done as well?
[ . And he had such an assignment, in California , and someone published it, I guess miracles do happen ! .. ]

给初级投资者的12条建议

It was written by an 8-year-old named Danny Dutton, who lives in Chula Vista , CA . He wrote it for his third grade homework assignment, to 'explain God.' I wonder if any of us could have done as well?
[ . And he had such an assignment, in California , and someone published it, I guess miracles do happen ! .. ]

EXPLANATION OF GOD:
'One of God's main jobs is making people. He makes them to replace the ones that die, so there will be enough people to take care of things on earth. He doesn't make grownups, just babies. I think because they are smaller and easier to make. That way he doesn't have to take 给初级投资者的12条建议 up his valuable time teaching them to talk and walk. He can just leave that to mothers and fathers .'

'God's second most important job is listening to prayers. An awful lot of this goes on, since some people, like preachers and things, pray at times beside bedtime. God doesn't have time to listen to the radio or TV because of this. Because he hears everything, there must be a terrible lot of noise in his ears, unless he has thought of a way to turn it off.'

'God sees everything and hears everything 给初级投资者的12条建议 and is everywhere which keeps Him pretty busy. So 给初级投资者的12条建议 you shouldn't go wasting his time by going over your mom and dad's head asking for something they said you couldn't have.'

'Atheists are people who don't believe in God. I don't think there are any in Chula Vista . At least there aren't any who come to our church.'

'Jesus is God's Son. He used to do all the hard work, like walking on water and performing miracles and trying to teach the people who didn't want to learn about God. They finally got tired of 给初级投资者的12条建议 him preaching to them and they crucified him But he was good and kind, like his father, and he told his father that they didn't know what they were doing and to forgive them and God said O.K.'

'His dad (God) appreciated everything that he had done and all his hard work on earth so he told him he didn't have to go out on the road anymore. He could stay in heaven. So he did And now he helps his dad out by listening to prayers and seeing things which are important for God to take care of and which ones he can take care of himself without having to bother God. Like a secretary, only more important.'

'You can pray anytime you want and they are sure to help you because they got it worked out so one of them is on duty all the time.'

'You should always go to church on Sabbath because it makes God happy, and if there's anybody you want to make happy, it'给初级投资者的12条建议 s God!

Don't skip church to do something you think will be more fun like going to the beach. This is wrong. And besides the sun doesn't come out at the beach until noon anyway.'

'If you don't believe in God, besides being an atheist, you will be very lonely, because your parents can't go everywhere with you, like to camp, but God can. It is good to know He's around you when you're scared, in the dark or when you can't swim and you get thrown into real deep water by big kids.'

'But. you 给初级投资者的12条建议 shouldn't just always think of what God 给初级投资者的12条建议 can do for you. I figure God put me here and he can take me back anytime he pleases.

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68岁凯文凯利的68条人生建议

68岁凯文凯利的68条人生建议 思考 好文分享 第1张

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《Effective Ruby:改善Ruby程序的48条建议》一第8条:初始化子类时调用super

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Ruby中,类没有传统的OOP式的构造方法。如果想要控制对象的初始状态,我们得写一个名为initialize的方法并在那里做必要的工作。在一个新对象被分配空间之后,就会在new中调用这个方法。如果你不在自己的类中自定义initialize方法,你的类将从BasicObject类中继承默认实现。不过这并不那么有效。事实上,那是个空方法,什么也没做。它只是在那里,使得new方法在你没有自定义initialize方法时有处可调。还好,很多时候BasicObject#initialize就可以满足你的需要了。不过当你需要自定义initialize方法时是个小例外。
有一点特别容易被忽略,initialize方法其实只是一个常规的私有实例方法,因此它遵循所有常规方法搜索规则。比如,如果你想,你能定义reset方法来简单地调用initialize方法把所有实例变量重设为其初始值。不过把initialize方法作为常规方法调用会造成令人惊讶的结果。当你定义initialize方法时你也重载了所有在继承体系中其他更高层的initialize的定义。如果在你曾用过的语言中存在正式的构造方法,你可能希望所有的继承体系中的方法会链在一起而非相互重载。不过在Ruby中和你想得不太
一样:

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来看方法Parent#initialize,很容易看出,当创建一个新的Parent对象时,实例变量@name会被初始化为一个默认值。也很容易看出当创建一个Child时,方法Child#initialize会为实例变量@grade赋值。可能不清楚的问题就是,创建一个Child对象是否也能为@name赋初始值。在IRB中运行这些代码就可以搞清楚这个问
题了:

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啊!Ruby不能自动调用被重载的方法,即使在initialize方法中也不行。本例中Child::new没有调用Parent类里的initialize方法,因为Child类有自己的initialize方法,它重载了父类的这个方法。重写带参的initialize方法将使事情更清楚些。

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如今你能看到这个窘境了。Ruby没有为我们提供给子类和其超类的initialize方法建立联系的方式。因此没办法知道如何自动调用超类中的initialize方法并传递正确的参数。于是这个任务留给了我们。这对新手Ruby程序员来说是件令人惊讶的事情,甚至老手也会不一定记得。
既然Ruby不会为我们初始化父类,我们该如何完成它呢?为initialize方法准备的解决方案和重载其他方法一样。也就是说,我们可以使用通用意义上的super关键字来调用继承体系中位于高层的方法。

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