新手卡住，容易「同時」在Python中重複

Question

程序的要點是詢問用戶的名字（自動大寫第一個字母）。

然後它會詢問年齡和性別。如果年齡超過130或負數，它會拋出一個錯誤

該程序應該打印出所有的信息，但我無法弄清楚while循環條件。任何人都可以幫我弄清楚while循環的條件嗎？

-edit-雖然Pastebin的鏈接已被編輯出來，但我認爲那裏有重要的信息。所以，我還是會給你的鏈接： http://pastebin.com/UBbXDGSt

name = input("What's your name? ").capitalize() 
age = int(input("How old are you ")) 
gender = input("From what gender are you? ").capitalize() 

while #I guess I should write something behind the "while" function. But what? 
    if age >= 130: 
     print("It's impossible that you're that old. Please try again!") 
    elif age <= 0: 
     print('''It should be logical that ages are written in positive numbers! Well, try again! =)''') 

age = int(input("How old are you? ")) 

print("Your name is ",name, ". You are ", age, "years old." "\nYou are ", gender, ".") 

Answer 1

你可以有，如果有一個有效輸入某個設定關閉/開啓的標誌。這將解決您的while循環

name = input("What's your name? ").capitalize() 
gender = input("From what gender are you? ").capitalize() 
ok = False #flag 
while not ok: 
    age = int(input("How old are you ")) 
    if age >= 130: 
     print("It's impossible that you're that old. Please try again!") 
    elif age <= 0: 
     print('''It should be logical that ages are written in positive numbers! Well, try again! =)''') 
    else: 
     ok = True 
print("Your name is ",name, ". You are ", age, "years old." "\nYou are ", gender, ".") 

Answer 2

這裏通常使用while True的問題。

while True: 
    age = int(input("How old are you? ")) 

    if age >= 130: 
     print("It's impossible that you're that old. Please try again!") 
    elif age <= 0: 
     print('''It should be logical that ages are written in positive numbers! Well, try again! =)''') 
    else: 
     break 

這將重複的問題，直到它得到一個可以接受的答案，在這種情況下break將跳出循環。

爲了完整性，您還應該檢查他們是否輸入了任何內容，並輸入了數字。在這裏，我還將使用continue，它將從頭開始重新啓動循環，忽略其餘代碼。這是一個很好的例子：

while True: 
    age = input("How old are you? ") 
    if not age: 
     print("Please enter your age.") 
     continue 
    try: 
     age = int(age) 
    except ValueError: 
     print("Please use numbers.") 
     continue 

    if age >= 130: 
     print("It's impossible that you're that old. Please try again!") 
    elif age <= 0: 
     print('''It should be logical that ages are written in positive numbers! Well, try again! =)''') 
    else: 
     break