Python程序员的进化
以前本博客发布过一篇《程序员的进化》，以一种幽默的代码展现方式调侃了程序。下面这篇是关于Python程序员的。以阶乘为例，很有意思。
新手程序员
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def factorial(x): if x == 0: return 1 else: return x * factorial(x - 1)print factorial(6) |
第一年的刚学完Pascal的新手
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def factorial(x): result = 1 i = 2 while i <= x: result = result * i i = i + 1 return resultprint factorial(6) |
第一年的刚学完C语言的新手
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def fact(x): #{ result = i = 1; while (i <= x): #{ result *= i; i += 1; #} return result;#}print(fact(6)) |
第一年刚学完SICP的新手
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@tailcalldef fact(x, acc=1): if (x > 1): return (fact((x - 1), (acc * x))) else: return accprint(fact(6)) |
第一年刚学完Python的新手
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def Factorial(x): res = 1 for i in xrange(2, x + 1): res *= i return resprint Factorial(6) |
爱偷懒的程序员
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def fact(x): return x > 1 and x * fact(x - 1) or 1print fact(6) |
更懒的 Python 程序员
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f = lambda x: x and x * f(x - 1) or 1print f(6) |
Python 专家
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import operator as opimport functional as ffact = lambda x: f.foldl(op.mul, 1, xrange(2, x + 1))print fact(6) |
Python 黑客
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import sys@tailcalldef fact(x, acc=1): if x: return fact(x.__sub__(1), acc.__mul__(x)) return accsys.stdout.write(str(fact(6)) + '\n') |
专家级程序员
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import c_mathfact = c_math.factprint fact(6) |
英语系的专家级程序员
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import c_mathsfact = c_maths.factprint fact(6) |
Web 设计者
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def factorial(x): #------------------------------------------------- #--- Code snippet from The Math Vault --- #--- Calculate factorial (C) Arthur Smith 1999 --- #------------------------------------------------- result = str(1) i = 1 #Thanks Adam while i <= x: #result = result * i #It's faster to use *= #result = str(result * result + i) #result = int(result *= i) #?????? result str(int(result) * i) #result = int(str(result) * i) i = i + 1 return resultprint factorial(6) |
Unix 程序员
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import osdef fact(x): os.system('factorial ' + str(x))fact(6) |
Windows 程序员
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NULL = Nonedef CalculateAndPrintFactorialEx(dwNumber, hOutputDevice, lpLparam, lpWparam, lpsscSecurity, *dwReserved): if lpsscSecurity != NULL: return NULL #Not implemented dwResult = dwCounter = 1 while dwCounter <= dwNumber: dwResult *= dwCounter dwCounter += 1 hOutputDevice.write(str(dwResult)) hOutputDevice.write('\n') return 1import sysCalculateAndPrintFactorialEx(6, sys.stdout, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) |
公司里的程序员
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def new(cls, *args, **kwargs): return cls(*args, **kwargs)class Number(object): passclass IntegralNumber(int, Number): def toInt(self): return new (int, self)class InternalBase(object): def __init__(self, base): self.base = base.toInt() def getBase(self): return new (IntegralNumber, self.base)class MathematicsSystem(object): def __init__(self, ibase): Abstract @classmethod def getInstance(cls, ibase): try: cls.__instance except AttributeError: cls.__instance = new (cls, ibase) return cls.__instanceclass StandardMathematicsSystem(MathematicsSystem): def __init__(self, ibase): if ibase.getBase() != new (IntegralNumber, 2): raise NotImplementedError self.base = ibase.getBase() def calculateFactorial(self, target): result = new (IntegralNumber, 1) i = new (IntegralNumber, 2) while i <= target: result = result * i i = i + new (IntegralNumber, 1) return resultprint StandardMathematicsSystem.getInstance(new (InternalBase, new (IntegralNumber, 2))).calculateFactorial(new (IntegralNumber, 6)) |
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