pygame中的set_mode询问位置参数，我不知道该怎么办

问题描述

我正在尝试做Snake来锻炼，并在运行游戏时遇到了这个问题：

TypeError: draw() missing 1 required positional argument: 'surface'

我试图修复它很多次，这很困难，因为我正在关注一个教程，视频中的那个人也没有这样的问题。

这是完整的代码，尚未完成，如果我在语法上有任何错误，也很抱歉，我不是母语人士。

import pygame

def main():
    global rows,width,s
    width = 500
    rows = 20
    win = pygame.display.set_mode(size=(width,width))
    s = snake((0,255,0),(10,10))
    flag = True

    clock = pygame.time.Clock()

    while flag:
        pygame.time.delay(50)
        clock.tick(10)
        s.move()
        redrawWindow(win)

#Serpente-------------------------------------------------------------------------------------------
#---------------------------------------------------------------------------------------------------
class snake(object):
    body = []
    turns = {}

    def __init__(self,color,pos):
      self.color = color
      self.head = cube(pos)
      self.body.append(self.head)
      self.dirnx = 0
      self.dirny = 1

    def move(self):
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()

            keys = pygame.key.get_pressed()

            for key in keys:
                if keys[pygame.K_LEFT]:
                    self.dirnx = -1
                    self.dirny = 0
                    self.turns[self.head.pos[:]] = [self.dirnx,self.dirny]

                elif keys[pygame.K_RIGHT]:
                    self.dirnx = 1
                    self.dirny = 0
                    self.turns[self.head.pos[:]] = [self.dirnx,self.dirny]

                elif keys[pygame.K_UP]:
                    self.dirnx = 0
                    self.dirny = -1
                    self.turns[self.head.pos[:]] = [self.dirnx,self.dirny]

                elif keys[pygame.K_DOWN]:
                    self.dirnx = 0
                    self.dirny = 1
                    self.turns[self.head.pos[:]] = [self.dirnx,self.dirny]

        for i,c in enumerate(self.body):
            p = c.pos[:]
            if p in self.turns:
                turn = self.turns[p]
                c.move(turn[0],turn[1])
                if i == len(self.body)-1:
                    self.turns.pop(p)
            else:
                if c.dirnx == -1 and c.pos[0] <= 0:
                    c.pos = (c.rows-1,c.pos[1])
                elif c.dirnx == 1 and c.pos[0] >= c.rows-1:
                    c.pos = (0,c.pos[1])
                elif c.dirny == 1 and c.pos[1] >= c.rows-1:
                    c.pos = (c.pos[0],0)
                elif c.dirny == -1 and c.pos[1] <= 0:
                    c.pos = (c.pos[0],c.rows-1)
                else:
                    c.move(c.dirnx,c.dirny)

    def reset(self,pos):
        pass

    def addCube(self):
        pass

    def draw(self,surface):
        for i,c in enumerate(self.body):
            if i == 0:
                c.draw(surface,True)
            else:
                c.draw(surface)

class cube(object):
    rows = 20
    w = 500
    def __init__(self,start,dirnx=1,dirny=0,color=(0,0)):
      self.pos = start
      self.dirnx = 1
      self.dirny = 0
      self.color = color

    def move(self,dirnx,dirny):
        self.dirnx = dirnx
        self.dirny = dirny
        self.pos = (self.pos[0] + self.dirnx,self.pos[1] + self.dirny)

    def draw(self,surface,eyes=False):
        dis = self.w // self.rows
        i = self.pos[0]
        j = self.pos[1]

        pygame.draw.rect(surface,self.color,(i*dis+j,j*dis+1,dis-2,dis-2))


#Resto----------------------------------------------------------------------------------------------
#---------------------------------------------------------------------------------------------------
def redrawWindow(surface):
    global rows,s
    surface.fill((0,0))
    s.draw()
    drawGrid(width,rows,surface)
    pygame.display.update()
    

def drawGrid(w,surface):
    sizeBtwn = w // rows

    x = 0
    y = 0
    for i in range(rows):
        x = x + sizeBtwn
        y = y + sizeBtwn

        pygame.draw.line(surface,(20,20,20),(x,w))
        pygame.draw.line(surface,(0,y),(w,y))

main()```

Also sorry if I did any grammatical mistakes,I'm not a native speaker.

解决方法

该问题可能与您在程序开始时未导入pygame有关。只需尝试在第一行中添加import pygame。如果仍然出现相同的错误，则可以查看如何download pygame。

,

该方法需要表面（屏幕）参数。

尝试：

def redrawWindow(surface):
    global rows,width,s
    surface.fill((0,0))
    s.draw(surface)    # <<< pass surface to method
    drawGrid(width,rows,surface)
    pygame.display.update()