Question

我是一个相当新的程序员，目前我已经被分配了一个项目来创建一个循环计算器，即使你使用其中一个计算器函数，它仍将继续运行，直到你提供选择。我的计算器目前的问题是，每当我尝试在Pydev上测试我的函数时，都会有一个不间断的终止。我已经解决了Pydev将我的一个变量（选项）读取为未使用的第一个问题，因此我使用了＆＃34; ctrl + 1＆＃34;伎俩和摆脱未使用的变量警告。关于我如何能够运行该程序并让它不断循环的任何提示？

def main():      
    loop=1
    choice=0  # @UnusedVariable
    while loop == 1:
        print("Welcome to Calculator Function!")
        print("Your options are:")
        print(" ")
        print("1/) Addition")
        print("2/) Subtraction") 
        print("3/) Multiplication")
        print("4/) Division")
        print("5/) Quit CalculatorFunction.py")
        print(" ")

    choice = int(raw_input("Choose your option: ").strip())
    if choice == 1:
        add1 = input("Add what: ")
        add2 = input("To what: ")
        print add1, "+", add2, "=", add1+add2
    elif choice == 2:
        sub2 = input("Subtract what: ")
        sub1 = input("From what: ")
        print sub1, "-", sub2, "=", sub1-sub2
    elif choice == 3:
        mult1 = input("Multiply what: ")
        mult2 = input("To what: ")
        print mult1, "*", mult2, "=", mult1*mult2
    elif choice == 4:
        div2= input("Divide what: ")
        div1= input("From what: ")
        print div1, "/", div2, "=", div1/div2
    elif choice == 5:
        loop = 0
        print"Thank you for using CalculatorFunction.py have a good day!" 
    else:
        print"No selection made, please try again."    


if __name__ == '__main__':
    main()

Answer 1

您的if - else块在while循环之外，这就是它不起作用的原因。这是正确缩进的代码：

def main():      
    loop=1
    choice=0  # @UnusedVariable
    while loop == 1:
        print("Welcome to Calculator Function!")
        print("Your options are:")
        print(" ")
        print("1/) Addition")
        print("2/) Subtraction") 
        print("3/) Multiplication")
        print("4/) Division")
        print("5/) Quit CalculatorFunction.py")
        print(" ")

        choice = int(raw_input("Choose your option: ").strip())
        if choice == 1:
            add1 = input("Add what: ")
            add2 = input("To what: ")
            print add1, "+", add2, "=", add1+add2
        elif choice == 2:
            sub2 = input("Subtract what: ")
            sub1 = input("From what: ")
            print sub1, "-", sub2, "=", sub1-sub2
        elif choice == 3:
            mult1 = input("Multiply what: ")
            mult2 = input("To what: ")
            print mult1, "*", mult2, "=", mult1*mult2
        elif choice == 4:
            div2= input("Divide what: ")
            div1= input("From what: ")
            print div1, "/", div2, "=", div1/div2
        elif choice == 5:
            loop = 0
            print"Thank you for using CalculatorFunction.py have a good day!" 
        else:
            print"No selection made, please try again."    



if __name__ == '__main__':
    main()

这在pydev上运作良好。

Answer 2

感谢您关于“缩进”的提示和其他一些事情，我终于想通了这个程序，感谢大家的意见。我做了什么来解决我的立即终止是修复缩进。然后为了使程序不断循环，如果没有做出选择我添加了继续，实质上终止程序的唯一方法是选择列出为“5”的选项quit。

def main()
    loop=1
    choice=0  # @UnusedVariable
    while loop == 1:
        print(" ")
        print("Welcome to Calculator Function!")
        print("Your options are:")
        print(" ")
        print("1) Addition")
        print("2) Subtraction") 
        print("3) Multiplication")
        print("4) Division")
        print("5) Quit CalculatorFunction.py")
        print(" ")

        choice = int(raw_input("Choose your option: ").strip())
        if choice == 1:
            add1 = int(raw_input("Add what: "))
            add2 = int(raw_input("To what: "))
            print add1, "+", add2, "=", add1+add2
        elif choice == 2:
            sub2 = int(raw_input("Subtract what: "))
            sub1 = int(raw_input("From what: "))
            print sub1, "-", sub2, "=", sub1-sub2
        elif choice == 3:
            mult1 = int(raw_input("Multiply what: "))
            mult2 = int(raw_input("To what: "))
            print mult1, "*", mult2, "=", mult1*mult2
        elif choice == 4:
            div2= int(raw_input("Divide what: "))
            div1= int(raw_input("From what: "))
            print div1, "/", div2, "=", div1/div2
        elif choice == 5:
            loop = 0 #Ends the program
            print"Thank you for using CalculatorFunction.py have a good day!" 
        else:
            print"No selection made, please try again."
            continue #loops the program

如果名称 =='主要'： main（）

Pydev程序不断终止

2 个答案: