while内的if语句与用户输入一起循环

时间:2019-01-31 17:34:20

标签: python python-3.x if-statement while-loop

此代码之前工作正常,但是现在我遇到了while 0 <= int(relationship)> 3代码块的问题。用户应该能够选择与信件接收者的关系类型,这将把称呼和称呼填充到信件中。

如果我将if / elif语句保留在while循环中,则sal / val字符串不会填充到字母中。

如果使if / elif语句与while循环齐平,则仅当用户第一次键入1、2或3时,字符串才会填充字母。如果用户键入的数字不是1、2或3,则程序将继续执行,但不会填充sal / val字符串。

最初,我只有一组if / elif语句,但是我创建了两组(这是多余的,并且也没有解决问题)语句,以查看是否可以解决问题。我也弄乱了缩进。我还尝试为每种类型的关系创建函数,但我不断因称呼而出现名称错误。

如果用户第一次遵循指示,我可以使该程序正常运行;如果在第一次尝试时出现错误,提示用户键入1、2或3,则可以使该程序运行。但是在两种情况下我都无法填充sal / val。我觉得问题一定与缩进有关,但是当我更改缩进级别时,问题并没有解决。

# Function for an infinite nested dictionary to add content to a personalized letter 
def lkng_glss_lttr_bot():             

    lgl_num = 0 
    while command == 'compose': 

        store_lkng_glss_lttr = {}
        new_lgl = {} 
        new_lgl_num = len(store_lkng_glss_lttr) + 1 
        store_lkng_glss_lttr[new_lgl_num] = new_lgl

        address_acquaintence = ['Dear', 'Cordially,']
        address_friend = ['Dearest', 'With warmest regards,']
        address_beloved = ['My Darling', 'With all my love and affection,']
        salutation = ''
        valediction = ''

        recipient = input("\nWhat is the recipient’s name?\n") 
        new_lgl['recipient'] = recipient

        email = input("\nWhat is the recipient's email?\n")
        new_lgl['email'] = email


        print("\nWhat is your relationship to %s?" % recipient)
        relationship = int(input("""Type 1 for Acquaintence
    Type 2 for Friend
    Type 3 for Beloved\n"""))

        while 0 <= int(relationship) > 3:
            relationship = input("Please type 1, 2, or 3.\n")

            if relationship == 1:
                for salutation in address_acquaintence:
                    salutation = address_acquaintence[0]                
                for valediction in address_acquaintence:
                    valediction = address_acquaintence[1]

            elif relationship == 2:    
                for salutation in address_friend:
                    salutation = address_friend[0]        
                for valediction in address_friend:
                    valediction = address_friend[1]

            elif relationship == 3:
                for salutation in address_beloved:
                    salutation = address_beloved[0]      
                for valediction in address_beloved:
                    valediction = address_beloved[1]

        if relationship == 1:
            for salutation in address_acquaintence:
                salutation = address_acquaintence[0]                
            for valediction in address_acquaintence:
                valediction = address_acquaintence[1]

        elif relationship == 2:    
            for salutation in address_friend:
                salutation = address_friend[0]        
            for valediction in address_friend:
                valediction = address_friend[1]

        elif relationship == 3:
            for salutation in address_beloved:
                salutation = address_beloved[0]      
            for valediction in address_beloved:
                valediction = address_beloved[1]



        print("\nPlease inquire about %s's well being." % recipient)
        inquiry = input("You can ask about the weather, or what %s has been doing to pass the time in the interim between your last exchange:\n" % recipient)

        body = input("\nPlease write a few sentences to inform %s of the recent happenings in your life:\n" % recipient)

        final_sentiment = input("\nPlease close the letter by expressing the importance of your friendship and your desire to spend time with %s in the future:\n" % recipient ) 

        sender = input("\nWhat is your name?\n")

        postscript = input("\nPlease write a short postscript to %s:\n" % recipient) 


        # Concatenate greeting and recipient
        part_1 = salutation + " " + recipient + "," + "\n"

        # Concatenate inquiry and body
        part_2 = inquiry + " " + body + "\n"

        # Concatenate part_1, part_2, final_sentiment, closing, sender, & postscript in reverse order for a non-tradional letter format
        non_trdtnl_lttr = "P.S. " + postscript + "\n" + sender + "\n" + valediction + "\n" + final_sentiment + "\n" + part_2 + part_1

        # Using the non-traditional letter format, reverse the order of the entire letter using an extended slice to create a Looking Glass Letter & store in dictionary
        lkng_glss_lttr = non_trdtnl_lttr[::-1]
        new_lgl['lkng_glss_lttr'] = lkng_glss_lttr


        # Notify sender that their letter contents have been added to the Bot
        print(store_lkng_glss_lttr)
        print("\nYour letter to %s has been composed by the Looking Glass Letter Bot:\n" % recipient + lkng_glss_lttr)
        print("\nYour Looking Glass Letter to %s will be emailed immediately." % recipient)


        # Ask user to add another client 
        print("\nWould you like to compose another letter? Y/N")
        sender_response = input().lower().strip() 


        if sender_response == 'y' or sender_response == 'yes': 
            continue 

        else:
            print("\nWe hope you enjoyed using the Looking Glass Letter Bot.\nWe look forward to serving your Looking Glass Letter composition needs in the future.")
            break 

输出应类似于:

,boB raeD

!doog m'I ?uoy era woH

!!uoy ssim I

,yllaidroC

G

.em llaC .S.P

但是,如果用户键入的数字不是1、2或3,并且必须再次提示,则亲爱的和亲切的用户不会填充。

1 个答案:

答案 0 :(得分:0)

在循环中,您不会将input的返回值转换为整数。