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你对编程的“道”和“术”的理解( 五 )


程序者，当于用户无惊。何者？不出其意也。
程序者，其表如一，无论繁简。寻之逻辑，不在其表。
夫程序悖此法者，纷乱无序，当复写之。
4.2A novice asked the master: "I have a program that sometimes runs and sometimes aborts. I have followed the rules of programming, yet I am totally baffled. What is the reason for this?"The master replied: "You are confused because you do not understand the Tao. Only a fool expects rational behavior from his fellow humans. Why do you expect it from a machine that humans have constructed? Computers simulate determinism; only the Tao is perfect.The rules of programming are transitory; only the Tao is eternal. Therefore you must contemplate the Tao before you receive enlightenment.""But how will I know when I have received enlightenment?" asked the novice."Your program will then run correctly," replied the master.或问曰：“余之程序，或行或止。余谨遵技法，然大惑不解，其何也？”
曰：“未得道也。愚者之言未尝信也，愚者之机器者何恃而信？电脑，惟遵行定论。惟道者大。
程序之法其短乎，而道者长存。汝当思道，而其惑解矣。”
问曰：“何以知惑解？”
曰：“以程序之运行也。”
4.3A master was explaining the nature of the Tao to one of his novices, "The Tao is embodied in all software -- regardless of how insignificant, " said the master."Is the Tao in a hand-held calculator?" asked the novice."It is," came the reply."Is the Tao in a video game?" continued the novice."It is even in a video game," said the master."And is the Tao in the DOS for a personal computer?"The master coughed and shifted his position slightly. "The lesson is over for today," he said.师释道，曰：“道者遍及软件，无论大小。”
问曰：“计算器者有道欤？”
曰：“有道。”
问曰：“游戏机者有道欤？”
曰：“然也。”
问曰：“微机之DOS者有道欤？”
师咳而转身曰：“课止与此。”
4.4Prince Wang\u0026#39;s programmer was coding software. His fingers danced upon the keyboard. The program compiled without an error message, and the program ran like a gentle wind.Excellent!" the Prince exclaimed, "Your technique is faultless!""Technique?" said the programmer, turning from his terminal, "What I follow is the Tao -- beyond all technique. When I first began to program I would see before me the whole program in one mass. After three years I no longer saw this mass. Instead, I used subroutines. But now I see nothing. My whole being exists in a formless void. My senses are idle. My spirit, free to work without a plan, follows its own instinct. In short, my program writes itself. True, sometimes there are difficult problems. I see them coming, I slow down, I watch silently. Then I change a single line of code and the difficulties vanish like puffs of idle smoke. I then compile the program. I sit still and let the joy of the work fill my being. I close my eyes for a moment and then log off."Price Wang said, "Would that all of my programmers were as wise!"程序员为公子王写软件，指飞键舞，不差丝毫，行之如风。
公子王曰：“嘻，善哉！技盖至此乎？”
程序员释键对曰：“臣之所好者道也，进乎技矣。始臣之编程之时，所见无非程序者；三年之后，未尝见程序也，见其子程序也；方今之时，臣以神遇而不以目视，官知止而神欲行，因其固然，程序自写之。诚然，尝至于难者，吾见其难为，怵然为戒，视为止，行为迟，改其一字，謋然已解，如烟随风。使之编译，释键而坐，为之踌躇满志，闭目而注销之。”


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