爲什麼我得到一個值錯誤：太多的值解壓縮？

Question

我已經開始在Python中編寫一個程序，用戶輸入他們想要向上/向下和向左/向右移動多少個空格，並且使用內置函數中的.split（）來完成此操作，但是當我運行程序我得到錯誤'值錯誤：太多的值解開（兩個預期）'時，只有兩個給出。如果有人幫我解決了這個問題，將不勝感激。我重視我下面的代碼： /編輯 - 我附上所有我下面的代碼：

choice=0 
b=0 
oldP=0 
newP=0 
player_location=' X ' 
x=8 
y=0 
xi=0 
yi=0 
up=0 
down=0 
left=0 
right=0 
new_board=[xi][yi] 
gold_coins=0 
bandits=5 
treasure_chests=10 
a=1 
xi2=0 
yi2=0 

import random 
def menu(): 
    print('If you would like to play the Treasure Hunt , press 1') 
    choice=input('If not, press any key to exit') 
    if choice=='1': 
     print('Great! You have made the right choice :)') 
    else: 
     print('Goodbye.') 
     quit() 
menu() 
def grid(): 
    new_board = [ ] 

def board(): 
    new_board = [ ] 
    top_row = [' 1 ',' 2 ',' 3 ',' 4 ',' 5 ',' 6 ',' 7 ',' 8 '] 

    new_board.append(top_row) 

    for x in range(0,8): 
    row = [' 0 ']*8 
    new_board.append(row) 
    return new_board 

def print_board(b): 
    row_numbers = [' ','1','2','3','4','5','6','7','8'] 
    i = 0 
    for row in b: 
    print (row_numbers[i],''.join(row)) 
    i=i+1 
new_board = board() 
xi=int(8) 
yi=int(0) 
new_board[xi][yi] = player_location 
while a==1: 
    def get_move(): 
     advice = 'Please enter your move in two integers, vertical, then horizontal. Use positive numbers for up and right, negative for down and left.' 
     example = 'For example, an input of \'22\' would be 2 moves vertically, and 2 moves horizontally.' 
     move = input(advice + example) 
     move.split() 
     x_move,y_move=move 
     x_move = int(move[0]) 
     y_move = int(move[1]) 
     return x_move, y_move, move 

while True: 
    print_board(new_board) 
    x_move, y_move = get_move() 
    move(x_move, y_move) # performs the move; updates the board grid() 

Answer 1

這個問題可能是你的get_move()函數返回三個值的元組，而來電者，只是想取兩個：

def get_move(): 
    advice = 'Please enter your move in two integers, vertical, then horizontal. Use positive numbers for up and right, negative for down and left.' 
    example = 'For example, an input of \'22\' would be 2 moves vertically, and 2 moves horizontally.' 
    move = input(advice + example) 
    move.split() 
    x_move,y_move=move 
    x_move = int(move[0]) 
    y_move = int(move[1]) 
    return x_move, y_move, move # three values 

    while True: 
     print_board(new_board) 
     x_move, y_move = get_move() # two values? 
     move(x_move, y_move) 

在你不關心這些值的情況下，你可以使用x_move, y_move, *_扔掉剩餘的，例如：

def get_move(): 
    advice = 'Please enter your move in two integers, vertical, then horizontal. Use positive numbers for up and right, negative for down and left.' 
    example = 'For example, an input of \'22\' would be 2 moves vertically, and 2 moves horizontally.' 
    move = input(advice + example) 
    move.split() 
    x_move,y_move=move 
    x_move = int(move[0]) 
    y_move = int(move[1]) 
    return x_move, y_move, move # three values 

    while True: 
     print_board(new_board) 
     x_move, y_move,*_ = get_move() 
     move(x_move, y_move) 

此外介意move.split()不起作用直列，記得str（串）是不可改變的，你需要捕捉的結果，所以你應該重寫你的get_move功能：

def get_move(): 
    advice = 'Please enter your move in two integers, vertical, then horizontal. Use positive numbers for up and right, negative for down and left.' 
    example = 'For example, an input of \'22\' would be 2 moves vertically, and 2 moves horizontally.' 
    move = input(advice + example) 
    move =move.split() 
    x_move,y_move=move 
    x_move = int(x_move) 
    y_move = int(y_move) 
    return x_move, y_move, move 

或等價的東西。

Answer 2

完整回溯本來不錯，但這裏的錯誤是顯而易見的：你回3個值return x_move, y_move, move

和分配返回值2倍的值：​​

刪除第三返回值，因爲無用信息已經包含在第2個座標數據

注意它只會失敗，因爲python無法決定如何將返回值分配給提供的變量（3 =>​​ 2）。分配給只有1個變量會起作用，並且會存儲3個大小的元組。

編輯：威廉回答指出，另一個錯誤：move.split()什麼也不做，讓你先encouter的解包誤差是存在的：

x_move,y_move=move 

（你必須解決這兩個錯誤，爲您的代碼工作）