If 语句未按我的预期运行

Question

这是我到目前为止的函数代码（可能发生错误的地方）：

def showAddition():
    print("You have selected: \"Addition\"")
            
    while True:
        last_answer = None
        if last_answer:
            next_num = int(input("Please input another number: "))
            answer = calc.addNums(last_answer, next_num)
        else:
            num1 = int(input("Please enter your first number: "))
            num2 = int(input("Please enter your second number: "))
            answer = calc.addNums(num1, num2)
                
            print(f'Your answer is {answer}')
            continue_prompt = input("Would you like to continue? Y/N\n")
                    
            if continue_prompt.upper() == "Y" or continue_prompt.upper() == "YES":
                last_answer = answer
            else:
                break

我试图做到这一点，以便我可以立即输入另一个数字，并不间断地添加一个又一个数字。然而，由于某种原因，循环只是重复。即使我在继续提示中输入“否”，它甚至不会中断。 “是”和“否”都会产生完全相同的结果，但我不明白。

Answer 1

您是否尝试过使用布尔变量而不是分解 2 个级别？

即

def showAddition():
    print("You have selected: \"Addition\"")
        
    continueProcess = True    
    while continueProcess:
        last_answer = None
        if last_answer:
            next_num = int(input("Please input another number: "))
            answer = calc.addNums(last_answer, next_num)
        else:
            num1 = int(input("Please enter your first number: "))
            num2 = int(input("Please enter your second number: "))
            answer = calc.addNums(num1, num2)
                
            print(f'Your answer is {answer}')
            continue_prompt = input("Would you like to continue? Y/N\n")
                    
            if continue_prompt.upper() == "Y" or continue_prompt.upper() == "YES":
                last_answer = answer
            else:
                continueProcess = False