如何將一個值放在另一個列表中？

Question

我的程序需要接受來自用戶的輸入，但輸入類似Ted,24，所以每個輸入都將用逗號分隔，我知道將它們放入列表中將是一個好主意，但我也需要獲得平均年齡。這裏是我到目前爲止的代碼：

namesAge = [] 
count = 0 
ave = 0 
total = 0 

while True: 
    mess=input("Enter name and age: ") 
    if mess == "": 
     print(namesAge) 
     print ("We have ",count," names") 
     print ("Total age is",total) 
     break 
    if "," in mess: 
     namesAge.append(mess) 
     count = count + 1 
    else: 
     print("invalid input") 

Answer 1

namesAge = [] 

while True: 
    mess=input("Enter name and age: ") 
    if mess == "": 
     print(namesAge) 
     print ("We have {} names".format(len(namesAge))) 
     print ("average age is {}".format(sum(namesAge)/len(namesAge)))) 
     break 
    elif "," in mess: 
     name, age = mess.split(',') 
     namesAge.append(int(age)) 
    else: 
     print("invalid input")