Python 3 -函数初学者练习

Question

Python 3、functions.

有以下练习:

编写一个函数，要求用户输入他的出生年份、名字和姓氏。把这些都放在一个变量中。该功能将计算用户的年龄、姓名的首字母并打印出来。例如:

John
Doh
1989
Your initials are JD and you are 32. 

年龄计算取决于你参加比赛的年份，你应该使用input, format等

给出的答案是:

def user_input():
birth_year = int(input("enter your birth year:n")) 
first_name = input ("enter your first name:n")
surname = input ("enter your surname:n")
print ("your initials are {1}{2} and you are {0} years old". format(first_name[0], surname[0],2021-birth_year))

当我运行这个时，终端是空的，希望你能帮上忙。提前感谢!

Answer 1

确保调用你的函数，这样它就会被执行:

def user_input():
birth_year = int(input("enter your birth year:n")) 
first_name = input("enter your first name:n")
surname = input("enter your surname:n")
print("your initials are {1}{2} and you are {0} years old".format(first_name[0], surname[0], 2021-birth_year))
# Call it here
user_input()

Answer 2

终端保持空是因为您没有调用函数来执行它。

def user_input():
birth_year = int(input("Please enter your birth year: ")) 
surname = input("Please enter your surname: ")
first_name = input("Please enter your first name: ")
print("nnYour initials are {1}{0} and you are {2} years old".format(first_name[0], surname[0], 2021-birth_year))
# remember to call the function
user_input()

Answer 3

小改动:

您可以使用DateTime模块来更改年份，而不是硬编码的年份值。

from datetime  import date
def user_input():
birth_year = int(input("Please enter your birth year: ")) 
surname = input("Please enter your surname: ")
first_name = input("Please enter your first name: ")
print("nnYour initials are {1}{0} and you are {2} years old".format(first_name[0], surname[0], date.today().year-birth_year))

# remember to call the function
user_input()