Question

我怎样才能提高这个monty hall程序的速度，有趣的是，使用BBC BASIC for Windows编写的相同代码在Python代码的一半时间内完成了任务。

Python代码：

import random

t = 10000001
j = 0
k = 0

for a in range(1, t):
    p = int(random.random() * 3) + 1
    g = int(random.random() * 3) + 1

    if p == g:
        r = int(random.random() * 2) + 1
        if p == 1:
            r += 1
        if p == 2 and r == 2:
            r = 3
    else:
        r = p ^ g
    s = g
    f = g ^ r
    if s == p:
        j = j + 1
    if f == p:
        k = k + 1

print(f"After a total of {t - 1} trials,")
print(f"The 'sticker' won {j} times ({int(j/t*100)}%)")
print(f"The 'swapper' won {k} times ({int(k/t*100)}%)")

BBC BASIC for Windows code

T% = 10000000

for A% = 1 to T%
  P% = rnd(3)
  G% = rnd(3)
  if P% = G% then

    R% = rnd(2)
    if P% = 1 then R% += 1
    if P% = 2 and R% = 2 then R% = 3
  else
    R% = P% eor G%
  endif
  S% = G%
  F% = G% eor R%
  if S% = P% then J% = J% + 1
  if F% = P% then K% = K% + 1
next

print "After a total of ";T%;" trials,"
print "The 'sticker' won ";J%;" times (";int(J%/T%*100);"%)"
print "The 'swapper' won ";K%;" times (";int(K%/T%*100);"%)"

Answer 1

第一件事是更改您的导入来源：

let options = {
  caption: (trigger) => trigger.querySelector('img').getAttribute('data-caption');
}

到

import random

然后使用：

from random import random

您可以做的第二件事是更改您的

p = int(random() * 3) + 1
g = int(random() * 3) + 1

进入：

if s == p:
     j = j + 1
if f == p:
     k = k + 1

Python代码与BBC Basic for Windows

1 个答案: