snake_coords)#移动蛇3031ret=snake_is_alive(snake_coords)32ifnot ret:33break#蛇跪了.游戏结束34snake_is_eat_food(snake_coords,food)#判断蛇是否吃到食物3536screen.fill(BG_COLOR)37#draw_grid(screen)38draw_snake(screen,snake_coords)39draw_food(screen,food)40draw_score(screen,len(snake_coords)-...
A scope is a textual region of aPythonprogram where a namespace is directly accessible. 作用域是指Python程序可以直接访问到的命名空间. 期刊摘选 Or, you can typepythonzpasspwd. py inituser and follow the prompts. 或者你可以输入pythonzpasspwd. py初始化用户并且跟着提示做. ...
Squasher = snake()是类型实例关系。将类snake实例化就得到了Squasher。 这时候,有两条很有用的规则: Dashed Arrow Up Rule:If X is an instance of A, and A is a subclass of B, then X is an instance of B as well.翻译过来应该是“虚线向上规则”:如果X是A的实例,同时A又是B的子类,那么,X也...
(psnake, psize, pboard): for i in range(FIELD_SIZE): if i == food: pboard[i] = FOOD elif is_cell_free(i, psize, psnake): # 该位置为空 pboard[i] = UNDEFINED else: # 该位置为蛇身 pboard[i] = SNAKE # 广度优先搜索遍历整个board, # 计算出board中每个非SNAKE元素到达食物的...
ifis_eat:food_position[0]=random.randint(0,screen_width/20-1)food_position[1]=random.randint(0,screen_length/20-1)food_position[0]*=20food_position[1]*=20whilefood_positioninsnake_position:food_position[0]=random.randint(0,screen_width/20-1)food_position[1]=random.randint(0,screen_len...
is_restart = main() if not is_restart: break 6、小恐龙 玩法:上下控制起跳躲避 源码分享: import cfg import sys import random import pygame from modules import * '''main''' def main(highest_score): # 游戏初始化 pygame.init() screen = pygame.display.set_mode(cfg.SCREENSIZE) ...
key == pygame.K_w: y1_change = -snake_block x1_change = 0 elif event.key == pygame.K_DOWN or event.key == pygame.K_s: y1_change = snake_block x1_change = 0 蛇的移动是通过在队头添加一个新的坐标,然后删掉队尾元素实现的。队列的长度始终为蛇长变量的值。x1 += x1_change y1 +=...
父子关系(图中以实线描述):这种关系存在于某个类(subclass)是另一个类(superclass)的特别版本之中。通常描述为“子类是一种父类”。比如:蛇是一种爬行动物(Snake is a kind of reptile)。其中,蛇(snake)是子类,爬行动物(reptile)是父类。蛇拥有爬行动物的特征,同时,又拥有标志自己是一条蛇的特征。
Well, Python is somewhat of a sneaky snake when it comes to imports and managing modules. At runtime, themymodulemodule has its ownoswhich is imported into its own local scope in the module. Thus, if we mockos, we won’t see the effects of the mock in themymodulemodule. ...
Plate 2.10.Corn, or red rat snake (Pantherophis guttata).One of the most common colubrine snakes maintained in private collections, it has been genetically selected for numerous color and pattern morphs. Although its bite is of no medical significance as it lacks Duvernoy’s glands and venom gl...