Python雙參數不起作用

-1

所以我有一個程序，我想要得到的提示，使用兩個參數。我首先提示用戶輸入一個用戶賬單，這是賬單費用的金額，然後我提示用戶輸入15％或30％的提示，但讓他們輸入十進制格式。我的問題是，當我調用Problem3（）方法後，在獲取userBill和tipRate的值之後，它也調用了problem3中的方法提示，但是我不斷收到此錯誤。對困惑感到抱歉。Python雙參數不起作用

>>> def Problem3(): 
    userBill = input("Enter the total of your bill at the restaurant.") 
    tipRate = input("Would you like to tip .15 or .30 of your bill?") 
    userBill = int(userBill) 
    tipRate = float(tipRate) 
    def Tip(userBill, tipRate): 
     tipRate1 = .15 
     tipRate2 = .30 
     userTip = 0 

     if tipRate == tipRate1: 
      userTip = tipRate1 * userBill 
     else: 
      userTip = tipRate2 * userBill 
     print("Your tip is " + userTip + " since you've want to tip at") 
    Tip(userBill, tipRate) 

>>> Problem3() 
Enter the total of your bill at the restaurant.100 
Would you like to tip .15 or .30 of your bill?.15 
Traceback (most recent call last): 
    File "<pyshell#23>", line 1, in <module> 
    Problem3() 
    File "<pyshell#22>", line 16, in Problem3 
    Tip(userBill, tipRate) 
    File "<pyshell#22>", line 15, in Tip 
    print("Your tip is " + userTip + " since you've want to tip at") 
TypeError: Can't convert 'float' object to str implicitly 
>>>

來源

2016-03-05 Usman Bashiru

喔我認爲我知道這個問題，也許是因爲我沒有調用方法，但哈哈......讓我試試看看它是否可行 –

使用'str（userTip）'。 – Zety

你真的不需要你Tip()功能的條件和局部變量：

def Tip(userBill, tipRate): 
    userTip = tipRate * userBill 
    print("Your tip is {0} since you've want to tip at {1}".format(userTip, tipRate)) 
Tip(userBill, tipRate)

你真的甚至不需要內部功能：

def Problem3(): 
    userBill = input("Enter the total of your bill at the restaurant.") 
    tipRate = input("Would you like to tip .15 or .30 of your bill?") 
    userBill = int(userBill) 
    tipRate = float(tipRate) 
    userTip = tipRate * userBill 
    print("Your tip is {0} since you've want to tip at {1}".format(userTip, tipRate))

來源

2016-03-05 17:07:50 AChampion

Python雙參數不起作用

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