Python

Question

name = input("what is your name? ")
age = int(input("what is your age? "))
year = str((2021 - age) + 100)

print(name , ", you'll be 100 in" , year , " !")

number = int(input("type in a number: "))
text = print('\n', name , ", you'll be 100 years old in" , year , " !")
x = 1

if x <= number:
   print(text)
if x <= number:
    x = x + 1
if x == number:

输出应该是：

数量=3

输出:

文字

在尝试 while 循环和 if 语句后，我得到：

数量=3

输出:

文字

[none]

Answer 1

这一行导致了问题：

text = print('\n', name , ", you'll be 100 years old in" , year , " !")

print() 语句的 return 是 None，因此在该行中文本 = None。意思是，当您打印文本时，您正在打印 None.

你可以这样改写：

text = f"\n{name}, you'll be 100 years old in {year}!"
print(text)

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