boxxboxy 语法

Question

我正在用一本书学习如何用pygame编写python代码，所以我要写下代码。但是当我运行它时，它在revealedBoxes[boxx][boxy]=True上给了我一个语法错误 ^
不知道是什么问题。如果你能帮忙，非常感谢

代码如下：

if boxx != None and Boxy != None:
        if not revealedBoxes[boxx][boxy]:
            drawHighlightBox(boxx, boxy)
        if not revealedBoxes[boxx][boxy] and mouseClicked:
            revealBoxesAnimation(mainBoard, [(boxx, boxy)]
            revealedBoxes[boxx][boxy] = True

Answer 1

            revealBoxesAnimation(mainBoard, [(boxx, boxy)]

你把括号掉在这里了

Answer 2

这是一个有效的声明

>>> revealedBoxes = [[True]]
>>> boxx, boxy = 0, 0
>>> revealedBoxes[boxx][boxy] = True

除非在while，if，…中用作表达式：

>>> if revealedBoxes[boxx][boxy] = True: pass
  File "<stdin>", line 1
    if revealedBoxes[boxx][boxy] = True: pass
                                 ^
SyntaxError: invalid syntax

>>> while revealedBoxes[boxx][boxy] = True: pass
  File "<stdin>", line 1
    while revealedBoxes[boxx][boxy] = True: pass
                                    ^
SyntaxError: invalid syntax

你是说==

>>> if revealedBoxes[boxx][boxy] == True: pass
...

更新

代码缺少)

        revealBoxesAnimation(mainBoard, [(boxx, boxy)]  # <  
        revealedBoxes[boxx][boxy] = True