Python 如何编写混淆的一行代码

是的，可以使用Lambda在Python中编写混淆的一行代码。在继续之前，我们首先要了解Python中的Lambda是什么。

Python Lambda

Lambda表达式允许定义匿名函数。Lambda函数是一个没有名称的匿名函数。让我们看一下语法 –

lambda arguments: expressions

关键字lambda定义了一个lambda函数。Lambda表达式可以包含一个或多个参数，但只能有一个表达式。

示例

让我们看一个示例 –

myStr = "Thisisit!"
(lambda myStr : print(myStr))(myStr)

输出

Thisisit!

合并一个Python列表中的元素使用Lambda

要使用Lambda合并元素，我们将使用reduce()方法。reduce()是Python中functools模块的一部分。让我们首先学习安装和使用functools模块 –

安装functools模块;

pip install functools

使用 functools 模块 −

import functools

示例

以下是代码 –

import functools

# List
myList = ['H', 'O', 'W', 'A', 'R', 'E', 'Y', 'O', 'U']

# Display the List
print("List = " + str(myList))

# Merge items using Lambda
myList[0: 3] = [functools.reduce(lambda i, j: i + j, myList[0: 3])]

# Displaying the Result
print("Result = " + str(myList))

输出

List = ['H', 'O', 'W', 'A', 'R', 'E', 'Y', 'O', 'U']
Result = ['HOW', 'A', 'R', 'E', 'Y', 'O', 'U']

现在将使用相同的functools模块来编写Python中的混淆的单行代码。为此，还使用了functools模块的reduce()方法−

用于质数的单行混淆代码

示例

现在让我们看一个使用functools模块进行质数的单行混淆代码的示例−

from functools import reduce

# Primes < 500
print(list(filter(None,map(lambda y:y*reduce(lambda x,y:x*y!=0,
map(lambda x,y=y:y%x,range(2,int(pow(y,0.5)+1))),1),range(2,500)))))

输出

[2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499]

一行代码的费波那契数列模糊代码

示例

现在让我们来看一个使用functools模块的一行代码的费波那契数列模糊代码的示例-获取前20个费波那契数。

from functools import reduce

# First 20 Fibonacci numbers
print(list(map(lambda x,f=lambda x,f:(f(x-1,f)+f(x-2,f)) if x>1 else 1:
f(x,f), range(20))))

输出

[1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765]

一行代码中混淆的Mandelbrot集图代码

示例

现在让我们看一个使用functools模块的一行代码中混淆的Mandelbrot集图的示例−

from functools import reduce

# Mandelbrot set
print((lambda Ru,Ro,Iu,Io,IM,Sx,Sy:reduce(lambda x,y:x+y,map(lambda y,
Iu=Iu,Io=Io,Ru=Ru,Ro=Ro,Sy=Sy,L=lambda yc,Iu=Iu,Io=Io,Ru=Ru,Ro=Ro,i=IM,
Sx=Sx,Sy=Sy:reduce(lambda x,y:x+y,map(lambda x,xc=Ru,yc=yc,Ru=Ru,Ro=Ro,
i=i,Sx=Sx,F=lambda xc,yc,x,y,k,f=lambda xc,yc,x,y,k,f:(k<=0)or (x*x+y*y
>=4.0) or 1+f(xc,yc,x*x-y*y+xc,2.0*x*y+yc,k-1,f):f(xc,yc,x,y,k,f):chr(
64+F(Ru+x*(Ro-Ru)/Sx,yc,0,0,i)),range(Sx))):L(Iu+y*(Io-Iu)/Sy),range(Sy
))))(-2.1, 0.7, -1.2, 1.2, 30, 80, 24))

# \___ ___/ \___ ___/ | | |__ lines on screen
# V V | |______ columns on screen
# | | |__________ maximum of "iterations"
# | |_________________ range on y axis
# |____________________________ range on x axis

输出

BBBBBBBBBBBBBBBCCCCCCCCCCCCCDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDCCCCCCCCCCCCCCCBBBBBBBBBBBBBCCCCCCCCCDDDDDDDDDDDDDDDDDDDDDDDDEEEEEEFGJJHFFFEEEEEDDDDDCCCCCCCCCCBBBBBBBBBBBCCCCCCCDDDDDDDDDDDDDDDDDDDDDDDEEEEEEEEEFFFGHJPJKL_FEEEEEEDDDDDDDCCCCCBBBBBBBBBCCCCCCDDDDDDDDDDDDDDDDDDDDDDEEEEEEEEEEFFFFGHIJZR_QJIGFFFEEEEEEDDDDDDDCCBBBBBBBBCCCCDDDDDDDDDDDDDDDDDDDDDDEEEEEEEEEEFFFGGGHIKP______SKHGFFFFFEEEEDDDDDDDBBBBBBBCCCDDDDDDDDDDDDDDDDDDDDEEEEEEEEEFFFHHIXIIIIJKLO______NKJJIHGGGHSGFEEDDDDDBBBBBBCCDDDDDDDDDDDDDDDDDDDEEEEEFFFFFFFGGHIM___R_________________PLN[SQXIFEEDDDDBBBBBCDDDDDDDDDDDDDDDDEEEFFFFFFFFFFFGGGHIKMNS_________________________UIGGFEEDDDBBBBBDDDDDDDDDDEEEEEFFGHOIHHHHHHHHHHHHIJLP____________________________RKJPGFEEDDBBBBDDDDEEEEEEEEEFFFFGGHJM___LNW_ONKJJKNY______________________________SKHGFEEEDBBBBDEEEEEEEEEFFFFFFGHHJLOT__________QPZ_________________________________HFFEEEEBBBDEEEEEEEFGGGGHHHJM_QNS______________________________________________[HGFFEEEEBBB_________________________________________________________________QLIHGFFFEEEEBBBDEEEEEEEFGGGGHHHJM_QNS______________________________________________[HGFFEEEEBBBBDEEEEEEEEEFFFFFFGHHJLOT__________QPZ_________________________________HFFEEEEBBBBDDDDEEEEEEEEEFFFFGGHJM___LNW_ONKJJKNY______________________________SKHGFEEEDBBBBBDDDDDDDDDDEEEEEFFGHOIHHHHHHHHHHHHIJLP____________________________RKJPGFEEDDBBBBBCDDDDDDDDDDDDDDDDEEEFFFFFFFFFFFGGGHIKMNS_________________________UIGGFEEDDDBBBBBBCCDDDDDDDDDDDDDDDDDDDEEEEEFFFFFFFGGHIM___R_________________PLN[SQXIFEEDDDDBBBBBBBCCCDDDDDDDDDDDDDDDDDDDDEEEEEEEEEFFFHHIXIIIIJKLO______NKJJIHGGGHSGFEEDDDDDBBBBBBBBCCCCDDDDDDDDDDDDDDDDDDDDDDEEEEEEEEEEFFFGGGHIKP______SKHGFFFFFEEEEDDDDDDDBBBBBBBBBCCCCCCDDDDDDDDDDDDDDDDDDDDDDEEEEEEEEEEFFFFGHIJZR_QJIGFFFEEEEEEDDDDDDDCCBBBBBBBBBBBCCCCCCCDDDDDDDDDDDDDDDDDDDDDDDEEEEEEEEEFFFGHJPJKL_FEEEEEEDDDDDDDCCCCCBBBBBBBBBBBBBCCCCCCCCCDDDDDDDDDDDDDDDDDDDDDDDDEEEEEEFGJJHFFFEEEEEDDDDDCCCCCCCCCC