Python shell“正在执行命令，请等待结果”

Question

我正在为 5x5 井字游戏编写代码。它似乎工作正常，但现在在运行程序的过程中，输入数字后没有任何反应，python shell 在顶部显示“正在执行命令。请等待结果”，但没有任何反应。我不确定问题是什么，因为在此之前它似乎工作正常。任何建议都会有很大帮助。

from random import randint    
def displayBoard(board): #printing board with each list on new line
    for i in board:
        print(*i,sep='  ')
        
def checkIfLegal(number,board): 
    if number<=0 or number>25: #if number in correct range
        print("That cell does not exist")
        return False
    number=number-1 #to match indices
    row=int(number/5) 
    col=number
    if col>4:
        col=int(col%5)
    if board[row][col]=="X" or board[row][col]=="O": #checking if cell is occupied
        print("That cell is occupied")
        return False
    return True 

def updateBoard(number,board,symbol):
    number=number-1 
    row=int(number/5)
    col=number
    if col>4:
        col=int(col%5)
    board[row][col]=symbol #change cell to player symbol

def computerMove(board):
    number=randint(0,24)
    row=int(number/5)
    col=number
    if col>4:
        col=int(col%5)
    while board[row][col]=="X" or board[row][col]=="O": #computer chooses a random integer between 0 and 24 until the cell is not taken
        number=randint(0,24)
    board[row][col]="O" #change cell to computer symbol ("O")

def checkWinner(board):       
    #check rows
    for row in board:
        if len(set(row))==1: #if there is only one symbol in the board
            return True
    #check columns
    for col in range(5):
        completecol=True
        for row in range(5):
            if board[row][col]!=board[row-1][col]:
                completecol=False
                break
        if completecol:
            return True
    #check diagonal
    if len(set(board[row][row] for row in range(5)))==1:
        return True
    if len(set(board[row][5-row-1] for row in range(5)))==1:
        return True
    return False
        
    
def main():
    board=[[1,2,3,4,5],[6,7,8,9,10],[11,12,13,14,15],[16,17,18,19,20],[21,22,23,24,25]] #initialize board
    turns=0 #turn counter
    print("The board is numbered from 1 to 25 as per the following:")      
    displayBoard(board)
    print("Player starts first. Simply input the number of the cell you want to occupy. Player's move is marked with X. Computer's move is marked with O.")
    play=input("Start? y/n: ")    #if the player chooses y, start game loop
    while play=="y": 
        number=int(input("Which cell would you like to occupy? "))
        while checkIfLegal(number,board)==False: #player chooses a number until it is legal
            number=int(input("Please enter a new cell: "))
            checkIfLegal(number,board)
        if checkIfLegal(number,board)==True: #once number is legal, update board
            updateBoard(number,board,"X")
        number=number-1 
        row=int(number/5)
        col=number
        if col>4:
            col=int(col%5)                
        if checkWinner(board)==True: 
            displayBoard(board)
            print("Congratulations! You won!")
            break
        turns+=1 
        if turns==25: #if 25 turns are taken with no winner, board is full and it is a tie.
            print("Tie game!")
            break
        computerMove(board)
        if checkWinner(board)==True: 
            displayBoard(board)
            print("Too bad. Computer won!")
            break
        turns+=1
        displayBoard(board)
    
        
    
main()

[1]:https://i.stack.imgur.com/U4QwX.png[python 外壳]

Answer 1

我认为你这里有一个无限循环：

while board[row][col]=="X" or board[row][col]=="O": #computer chooses a random integer between 0 and 24 until the cell is not taken
    number=randint(0,24)

您不会根据 number 的新值重新计算 row 和 col 的值。所以循环条件保持不变。一旦遇到循环条件为真的情况，就永远不会退出循环。

Answer 2

在您的computerMove() 函数中，您通过在number 变量中传递一个介于0 和24 之间的随机整数然后对它不做任何事情（它保持未使用状态）来创建一个无限循环。 我试图做的是复制

row=int(number/5)
    col=number
    if col>4:
        col=int(col%5)

在这样的while循环中：

def computerMove(board):
    number = randint(0, 24)
    row = int(number / 5)
    col = number
    if col > 4:
        col = int(col % 5)
    while board[row][col] == "X" or board[row][col] == "O":
        number = randint(0, 24)
        row = int(number / 5)
        col = number
        if col > 4:
            col = int(col % 5)
    board[row][col] = "O" 

你的程序就像一个魅力！