我剛剛開始編碼，我正在慢慢理解它。對于我的班級，我們必須制作一個兒童程序來練習他們的數學，并詢問他們是否愿意再試一次，如果它是正確的。如果他們輸入 Y，我無法理解如何讓我的 while True 循環重新啟動。有什么提示嗎？這是我的代碼： #Addition A = int(input("What is %i + %i =" %(N1, N2))) while add != N1 + N2: add = int(input("Incorrect, what is %i + %i = " %(N1,N2))) while add == N1 + N2: repeat =(input("Correct! would you like to try again? Y/N ")) if repeat == 'n': break if repeat == 'y': continueif op == "-": #Subrtraction s = int(input("What is %i - %i =" %(N1, N2))) while s != N1 - N2: s = int(input("Incorrect, what is %i - %i = " %(N1,N2))) while s == N1 - N2: repeat =(input("Correct! would you like to try again? Y/N "))if op == "*": #Multiply m = int(input("What is %i - %i =" %(N1, N2))) while m != N1 * N2: m = int(input("Incorrect, what is %i - %i = " %(N1,N2))) while m == N1 * N2: repeat =(input("Correct! would you like to try again? Y/N "))
3 回答
翻翻過去那場雪
TA貢獻2065條經驗 獲得超14個贊
我認為最好先進入一個while循環，然后從用戶那里獲取輸入或確定答案是否正確以及其他問題......
# coding: utf-8
# Start of the 1st Question
redo="y"
A1=-1 # can be any integer but not the correct answer
n1, n2 = 2, 3
while (A1 != n1 + n2) or redo.lower()=="y":
# ask the question
A1 = int(input("What is the sum of %i and %i : " % (n1, n2)))
# if answer is correct
if A1 == n1 + n2:
redo = input("Correct ! Would you like to try again? (Y/[N]) : ")
if redo.lower() == "y":
continue
else:
break
else:
print("Your Answer : %d is Incorrect!" % A1)
汪汪一只貓
TA貢獻1898條經驗 獲得超8個贊
這種程序結構沒有意義。
你可以做：
while True:
num1 = int(input("num1 "))
num2 = int(input("num2 "))
op = '+'
calc = -1
if op == "+":
while calc != num1 + num2:
calc = int( input(f"Whats {num1} {op} {num2}?"))
elif op == "-":
pass # code the others
elif op == "*":
pass # code the others
elif op == "/":
pass # code the others - use float where needed instead of int
# comparing floats is difficult due to float math rounding imperfection
print("Correct!" , num1, op, num2,"=",calc)
again = input("Again? Y to do it again: ").lower()
if again != "y":
break # leaves the while True
桃花長相依
TA貢獻1860條經驗 獲得超8個贊
為此，您可以定義一個函數。也許它比你在課堂上做的要復雜一點，但它仍然很基礎，所以你可以輕松學習它:) 使用函數時，請記住在第一次調用它以便它可以工作。這是一個例子：
def function_name():
while True:
'''your code'''
repeat =(input("Correct! would you like to try again? Y/N "))
if repeat == "y":
function_name() # wach time the user say "y" the code calls the function again.
break # the break will finish the while loop and will close the program.
function_name() # that's where I call the function the first time.
順便說一句，如果您正在使用該函數，則實際上不必使用 while 循環。但我認為這是你在課堂上的工作，所以我就這樣吧:)
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