Python井字棋异常：玩家胜败时仍触发平局提示

问题根源：当前代码中，第9步决出胜负时，胜负提示弹出后，后续的clickCount ==9判断仍会执行，导致平局提示也被触发。

修复方案一：胜负判定后终止函数执行 #

在玩家或电脑获胜的分支中添加return语句，直接终止函数运行，跳过后续的平局判断逻辑：

def btn_click(row, col):
    global hasClicked, clickCount

    if buttonGrid[row][col]["text"] == "" and hasClicked == True:
        
        buttonGrid[row][col]["text"] = "X"
        clickCount += 1
            
        # 检查玩家是否获胜
        if who_wins("X"):
            messagebox.showinfo("O-X-O", "You win, Congratulations!")
            messagebox.showinfo("O-X-O", "Go to Menu to play again or quit!")
            disable_buttons()
            return  # 终止函数，不再执行后续代码
            
        else:
            computer_turn()
            # 检查电脑是否获胜
            if who_wins("O"):
                messagebox.showinfo("O-X-O", "You lose, Unlucky!")
                messagebox.showinfo("O-X-O", "Go to Menu to play again or quit!")
                return  # 终止函数，不再执行后续代码
                
        # 仅当无胜负且填满格子时触发平局提示
        if clickCount == 9:
            messagebox.showinfo("O-X-O", "It was a Draw!")
            messagebox.showinfo("O-X-O", "Go to Menu to play again or quit!")

修复方案二：给平局判断添加无胜负前提 #

修改平局判断条件，确认双方均未获胜后再触发提示：

def btn_click(row, col):
    global hasClicked, clickCount

    if buttonGrid[row][col]["text"] == "" and hasClicked == True:
        
        buttonGrid[row][col]["text"] = "X"
        clickCount += 1
            
        # 检查玩家是否获胜
        if who_wins("X"):
            messagebox.showinfo("O-X-O", "You win, Congratulations!")
            messagebox.showinfo("O-X-O", "Go to Menu to play again or quit!")
            disable_buttons()
            
        else:
            computer_turn()
            # 检查电脑是否获胜
            if who_wins("O"):
                messagebox.showinfo("O-X-O", "You lose, Unlucky!")
                messagebox.showinfo("O-X-O", "Go to Menu to play again or quit!")
                
        # 仅当填满格子且双方均未获胜时触发平局提示
        if clickCount == 9 and not who_wins("X") and not who_wins("O"):
            messagebox.showinfo("O-X-O", "It was a Draw!")
            messagebox.showinfo("O-X-O", "Go to Menu to play again or quit!")

两种方案均可解决问题：方案一效率更高，决出胜负后直接终止函数；方案二逻辑更直观，明确平局的触发条件。

内容的提问来源于stack exchange，提问作者twigMURR