Python代码生成错误的D

Question

我正在尝试编写一个代码，为上面的表生成一个值。这些值将在遵循一组规则时生成：

1. 当前状态和下一个状态不能相同。因此，如果A是当前状态，那么下一个状态必须是B或C。

2. 每次执行程序时都会随机生成这些值。

3. 所有具有相同当前状态、操作和下一状态的行都应该具有相同的奖励。

问题是，即使我列出了随机选择值的列表，我仍然无法生成不会违反规则1的值。每次我运行代码时，都违反了规则1。程序的代码如下所示。你知道吗

import random
# Creating lists of variables that will be used to pick a next state at 
random while standing on a current state
NSA = ['B', 'C'] # List of states reachable from A. We use this list to pick 
a next state at random
NSB = ['A', 'C'] # List of states reachable from B. We use this list to pick 
a next state at random
NSC = ['A', 'B'] # List of states reachable from B. We use this list to pick 
a next state at random
Current = ['A', 'B', 'C'] # List of possible current states


RandomList = [-5.0, -4.0, -3.0, -2.0, -1.0, 0.0, 1.0, 2.0, 3.0, 4.0] # List 
of possible rewards for actions taken
Action = ["Clockwise", "Counterclockwise"] # List of possible actions taken 
from a current state

# We need to make sure we know what the current state is, what the action 
will be and what would be the next state and have a reward for it

# Since there are 2 possible states reachable from A after a clockwise 
action, we create and declare 2 variables. These variables will be used to 
pick the next
# state at random. Having 2 variables ensures that all the entries are not 
populated by a single state and thus makins sure we have both states 
populating the column for the action. We then do this for counterclockwise 
action and repeat it for everystate

# Since python doesnt allow to declare variables without instantiation, 
hence we are assigning a value to each state. This wont matter as we will 
later be using the random function to choose a value from the respected 
lists declared above.

# Variables as mentioned above for state A. Note cw = clockwise and ccw = 
counterclockwise
AnScw1 = "B"
AnScw2 = "C"
AnSccw1 = "B"
AnSccw2 = "C"

# Variables as mentioned above for state B. Note cw = clockwise and ccw = 
counterclockwise
BnScw1 = "A"
BnScw2 = "C"
BnSccw1 = "A"
BnSccw2 = "C"

# Variables as mentioned above for state C. Note cw = clockwise and ccw = 
counterclockwise
AnScw1 = "A"
AnScw2 = "B"
AnSccw1 = "A"
AnSccw2 = "B"


# creating variables to pick rewards randomly
a_cw_r1 = random.choice(RandomList)
a_cw_r2 = random.choice(RandomList)
a_ccw_r1 = random.choice(RandomList)
a_ccw_r2 = random.choice(RandomList)
b_cw_r1 = random.choice(RandomList)
b_cw_r2 = random.choice(RandomList)
b_ccw_r1 = random.choice(RandomList)
b_ccw_r2 = random.choice(RandomList)
c_cw_r1 = random.choice(RandomList)
c_cw_r2 = random.choice(RandomList)
c_ccw_r1 = random.choice(RandomList)
c_ccw_r2 = random.choice(RandomList)

current = random.choice(Current) # Pick at randomly a current state from the list Current

if (current=="A") :
action = random.choice(Action) # pick a action at random, from the list of actions
if (action=="Clockwise") : # if clockwise action picked
    AnScw1 = random.choice(NSA) # randomly choose a next state
    AnScw2 = random.choice(NSA) # randomly choose a next state
    # if the two states are the same, then change the values. So if any one of two has B as next state, the other is
    # is assigned C as the next state.
    if (AnScw1 == "B" or AnScw2 == "B") : 
        if (AnScw1 == AnScw2 and AnScw1 == "B") :
            AnScw2 = "C"
            a_cw_b_r1 = random.choice(RandomList) # pick a reward from list at random
            a_cw_b_r2 = random.choice(RandomList) # pick a reward from list at random
    if (AnScw1 == "C" or AnScw2 == "C") :
        if (AnScw1 == AnScw2 and AnScw1 == "C") :
            AnScw2 = "B"
            a_cw_r1 = random.choice(RandomList)
            a_cw_r2 = random.choice(RandomList)

if (action=="Counterclockwise") :
    AnSccw1 = random.choice(NSA)
    AnSccw2 = random.choice(NSA)
    if (AnSccw1 == "B" or AnSccw2 == "B") :
        if (AnSccw1 == AnSccw2 and AnSccw1 == "B") :
            AnSccw2 = "C"
            a_ccw_r1 = random.choice(RandomList)
            a_ccw_r2 = random.choice(RandomList)
    if (AnSccw1 == "C" or AnSccw2 == "C") :
        if (AnSccw1 == AnSccw2 and AnSccw1 == "C") :
            AnSccw2 = "B"
            a_ccw_r1 = random.choice(RandomList)
            a_ccw_r2 = random.choice(RandomList)
if (current=="B") :
action = random.choice(Action)
if (action=="Clockwise") :
    BnScw1 = random.choice(NSB)
    BnScw2 = random.choice(NSB)
    if (BnScw1 == "A" or BnScw2 == "A") :
        if (BnScw1 == BnScw2 and BnScw1 == "A") :
            BnScw2 = "C"
            b_cw_b_r1 = random.choice(RandomList)
            b_cw_b_r2 = random.choice(RandomList)
    if (BnScw1 == "C" or BnScw2 == "C") :
        if (BnScw1 == BnScw2 and BnScw1 == "C") :
            BnScw2 = "B"
            b_cw_r1 = random.choice(RandomList)
            b_cw_r2 = random.choice(RandomList)

if (action=="Counterlockwise") :
    BnSccw1 = random.choice(NSB)
    BnSccw2 = random.choice(NSB)
    if (BnSccw1 == "A" or BnSccw2 == "A") :
        if (BnSccw1 == BnSccw2 and BnSccw1 == "A") :
            BnSccw2 = "C"
            b_ccw_r1 = random.choice(RandomList)
            b_ccw_r2 = random.choice(RandomList)
    if (BnSccw1 == "C" or BnSccw2 == "C") :
        if (BnSccw1 == BnSccw2 and BnSccw1 == "C") :
            BnSccw2 = "B"
            b_ccw_r1 = random.choice(RandomList)
            b_ccw_r2 = random.choice(RandomList)
if (current=="C") :
action = random.choice(Action)
if (action=="Clockwise") :
    CnScw1 = random.choice(NSC)
    CnScw2 = random.choice(NSC)
    if (CnScw1 == "A" or CnScw2 == "A") :
        if (CnScw1 == CnScw2 and CnScw1 == "A") :
            CnScw2 = "B"
            c_cw_r1 = random.choice(RandomList)
            c_cw_r2 = random.choice(RandomList)
    if (CnScw1 == "B" or CnScw2 == "B") :
        if (CnScw1 == CnScw2 and CnScw1 == "B") :
            CnScw2 = "A"
            c_cw_r1 = random.choice(RandomList)
            c_cw_r2 = random.choice(RandomList)

if (action=="Counterclockwise") :
    CnSccw1 = random.choice(NSC)
    CnSccw2 = random.choice(NSC)
    if (CnSccw1 == "A" or CnSccw2 == "A") :
        if (CnSccw1 == CnSccw2 and CnSccw1 == "A") :
            CnSccw2 = "B"
            c_ccw_r1 = random.choice(RandomList)
            c_ccw_r2 = random.choice(RandomList)
    if (CnSccw1 == "B" or CnSccw2 == "B") :
        if (CnSccw1 == CnSccw2 and CnSccw1 == "B") :
            CnSccw2 = "A"
            c_ccw_r1 = random.choice(RandomList)
            c_ccw_r2 = random.choice(RandomList)

如你所见，我已经创建了3个名单国安局，国安局和国安局。我使用这3个列表从中随机选取一个值，但我得到的项目甚至不在列表中。例如，看看下面的代码部分

NSA = ['B', 'C']
AnScw1 = "B"
AnScw2 = "C"
AnSccw1 = "B"
AnSccw2 = "C"
#calling then later like this
AnScw1 = random.choice(NSA)
AnScw2 = random.choice(NSA)
AnSccw1 = random.choice(NSA)
AnSccw2 = random.choice(NSA)

我应该从AnScw1，AnScw2，AnSccw1，AnSccw2得到B或C，但是相反，我也得到了一个不在列表中的项目。你知道吗

所需的输出应如下所示：

===========================================================================
|| Current State || || Action Taken        || ||  Next State   || Reward ||
===========================================================================
||    A          || ||     Clockwise       || ||      C        || -2.0   || 
||    C          || ||  Counterclockwise   || ||      A        ||  4.0   ||
||    B          || ||  Counterclockwise   || ||      C        ||  4.0   ||
||    A          || ||  Counterclockwise   || ||      C        ||  4.0   ||

Desired Output

Answer 1

我认为，为了确保规则nr1永远不会被验证，可以使用assert语句，如下所示：

b = rand() * b

assert a != b