open(start) html = r.read() soup = BeautifulSoup(html) for link in soup.find_all('a'): linkText = str(link) fileName = str(link.get('href')) if filetype in fileName: image = urllib.URLopener() linkGet = http://www.irrelevantcheetah.com + fileName filesave = string.lstrip(fil...
Understand the concept of for statements in Python and the context behind a Python for loop syntax. Learn how to write a for loop with Python for...
type == p.QUIT: # If user clicked close finish = True # Flag that we are done so we exit this loop # Set the screen background WINDOW.fill(BLACK) # Process each snow flake in the list for eachSnow in range(len(snowArray)): # Draw the snow flake p.draw.circle(WINDOW, color_co...
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复制 while True: # main game loop for event in pygame.event.get(): 第8 行是一个for循环,它将遍历由pygame.event.get()返回的 Event 对象列表。在每次循环中,一个名为event的变量将被赋予该列表中下一个事件对象的值。从pygame.event.get()返回的 Event 对象列表将按事件发生的顺序排列。如果用户先点...
In a usual python string, the backslash is used to escape characters that may have a special meaning (like single-quote, double-quote, and the backslash itself). >>> "wt\"f" 'wt"f' In a raw string literal (as indicated by the prefix r), the backslashes pass themselves as is ...
A program accepts and processes new input until the user enters an escape sequence. A function continues reading data from a stream as long as the connection remains open. To summarize, a for statement is used when the maximum number of iterations is known in advance. Use a while statement ...
keys: K_LEFT, K_RIGHT, K_UP, K_DOWN.键盘右边的四个箭头按键退出键ESC: K_ESCAPE因为导入了...
print("you failed to escape") if random.randrange(1, 16) == critical_hit_chance: name_1_health = name_1_health - (slime_rank1_attack*2) print("Its a critical hit!") print("you have lost " + str(slime_rank1_attack*2) + " health") ...
# To derive the formula for calculating jump speed, first solve # v_t = v_0 + a * t # for the time at which you achieve maximum height, where a is the acceleration # due to gravity and v_t = 0. This gives: # t = - v_0 / a ...