您好,登錄后才能下訂單哦!
怎么實現python迭代循環和用戶輸入?針對這個問題,這篇文章詳細介紹了相對應的分析和解答,希望可以幫助更多想解決這個問題的小伙伴找到更簡單易行的方法。
FOR(iteration) 循環
for 循環是 Python 中最常用的迭代機制。Python 中幾乎所有的結構都能被 for 迭代。包括列表,元組,字典等。另一種常用的循環是 while 循環,但是 for 循環會是你最常見到的循環。
什么是 while 循環
while 循環會判斷一個初始條件,條件成立則執行一次迭代,每次迭代完成后重新判斷條件,如果成立則繼續迭代,否則退出循環。
通用語法
# Set an initial condition. game_active = True # Set up the while loop. while game_active: # Run the game. # At some point, the game ends and game_active will be set to False. # When that happens, the loop will stop executing. # Do anything else you want done after the loop runs.
每次循環前都要初始化一條判斷為 true 的條件。
while 循環中包含條件判斷。
條件判斷為 true 則執行循環內代碼,不斷迭代,判斷。
判斷為 false 則退出循環。
示例
# The player's power starts out at 5. power = 5 # The player is allowed to keep playing as long as their power is over 0. while power > 0: print("You are still playing, because your power is %d." % power) # Your game code would go here, which includes challenges that make it # possible to lose power. # We can represent that by just taking away from the power. power = power - 1 print("\nOh no, your power dropped to 0! Game Over.")
用戶輸入
在 Python 中你可以利用 input() 函數接受用戶輸入。函數可以接受一條提示信息,等待用戶輸入。
通用用法
# Get some input from the user. variable = input('Please enter a value: ') # Do something with the value that was entered.
示例
如下示例,提示用戶輸入名字,加入到名字列表中。
# Start with a list containing several names. names = ['guido', 'tim', 'jesse'] # Ask the user for a name. new_name = input("Please tell me someone I should know: ") # Add the new name to our list. names.append(new_name) # Show that the name has been added to the list. print(names)
關于怎么實現python迭代循環和用戶輸入問題的解答就分享到這里了,希望以上內容可以對大家有一定的幫助,如果你還有很多疑惑沒有解開,可以關注億速云行業資訊頻道了解更多相關知識。
免責聲明:本站發布的內容(圖片、視頻和文字)以原創、轉載和分享為主,文章觀點不代表本網站立場,如果涉及侵權請聯系站長郵箱:is@yisu.com進行舉報,并提供相關證據,一經查實,將立刻刪除涉嫌侵權內容。