为什么我的 for 循环只重复打印第一个 if 语句？

二项式_侏儒

我正在尝试创建一个代表棋盘的列表。我有这个代码：

#possible list items
EMPTY = "-"
ROOK = "ROOK"
KNIGHT = "KNIGHT"
BISHOP = "BISHOP"
QUEEN = "QUEEN"
KING = "KING"
PAWN = "PAWN"
board = []

royal_row = [] #list for row containing king

pawn_row = []#list for pawn row

row = [] #generic row

#setting the board
for i in range(8):
    if i == 0 or 7:
        royal_row = [ROOK,KNIGHT,BISHOP,QUEEN,KING,BISHOP,KNIGHT,ROOK]
        board.append(royal_row)
        
    elif i == 1 or 6:
        pawn_row = [PAWN for i in range(8)]
        board.append(pawn_row)
        
    else: 
        row = [EMPTY for i in range(8)]
        board.append(row)

for i in range(8):
    print(board[i], end = "\n")

当我运行此代码时，它只会打印：

['ROOK', 'KNIGHT', 'BISHOP', 'QUEEN', 'KING', 'BISHOP', 'KNIGHT', 'ROOK']

['ROOK', 'KNIGHT', 'BISHOP', 'QUEEN', 'KING', 'BISHOP', 'KNIGHT', 'ROOK']

['ROOK', 'KNIGHT', 'BISHOP', 'QUEEN', 'KING', 'BISHOP', 'KNIGHT', 'ROOK']

['ROOK', 'KNIGHT', 'BISHOP', 'QUEEN', 'KING', 'BISHOP', 'KNIGHT', 'ROOK']

['ROOK', 'KNIGHT', 'BISHOP', 'QUEEN', 'KING', 'BISHOP', 'KNIGHT', 'ROOK']

['ROOK', 'KNIGHT', 'BISHOP', 'QUEEN', 'KING', 'BISHOP', 'KNIGHT', 'ROOK']

['ROOK', 'KNIGHT', 'BISHOP', 'QUEEN', 'KING', 'BISHOP', 'KNIGHT', 'ROOK']

['ROOK', 'KNIGHT', 'BISHOP', 'QUEEN', 'KING', 'BISHOP', 'KNIGHT', 'ROOK']

我的预期输出是：

['ROOK', 'KNIGHT', 'BISHOP', 'QUEEN', 'KING', 'BISHOP', 'KNIGHT', 'ROOK']

['PAWN', 'PAWN', 'PAWN', 'PAWN', 'PAWN', 'PAWN', 'PAWN', 'PAWN']

['-', '-', '-', '-', '-', '-', '-', '-']

['-', '-', '-', '-', '-', '-', '-', '-']

['-', '-', '-', '-', '-', '-', '-', '-']

['-', '-', '-', '-', '-', '-', '-', '-']

['PAWN', 'PAWN', 'PAWN', 'PAWN', 'PAWN', 'PAWN', 'PAWN', 'PAWN']

['ROOK', 'KNIGHT', 'BISHOP', 'QUEEN', 'KING', 'BISHOP', 'KNIGHT', 'ROOK']

如果我将 1、0、6 和 7 与它们自己的 elif 子句分开，那么它会正确打印，但我想了解为什么原始代码没有

皮耶罗

您决定更改 if 并放入：i == 0 or i == 7和i == 1 or i == 6

#possible list items
EMPTY = "-"
ROOK = "ROOK"
KNIGHT = "KNIGHT"
BISHOP = "BISHOP"
QUEEN = "QUEEN"
KING = "KING"
PAWN = "PAWN"
board = []

royal_row = [] #list for row containing king

pawn_row = []#list for pawn row

row = [] #generic row

#setting the board
for i in range(8):
    if i == 0 or i == 7:
        royal_row = [ROOK,KNIGHT,BISHOP,QUEEN,KING,BISHOP,KNIGHT,ROOK]
        board.append(royal_row)

    elif i == 1 or i == 6:
        pawn_row = [PAWN for i in range(8)]
        board.append(pawn_row)

    else:
        row = [EMPTY for i in range(8)]
        board.append(row)

for i in range(8):
    print(board[i], end = "\n")

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