Python 如何使用户名和年龄前3个字符的名字，然后年龄？

我想把它放在这里
一个学生来注册他的帐户，他的名字是Sammy，他的年龄是16岁。我想自动编程，它会选择他名字的前3个字母，然后选择他的年龄。创建帐户后，他的用户名不应该是Sammy，应该是sam16，前3个字母，然后是年龄。 请帮忙

前3个字母Jhonny
他的年龄12
最终外观jho12

登记 例如：

name = 'John Soe'
age = 32
username = name[:3] + str(age)
print(username)

输出：

约翰32

在您的情况下，您可以这样做：

def register():
    while True:
        username = input("New username: ")
        if not len(username) > 1:
            print("Username should be more than 2 characters")
            continue
        else:
            break
        print("")
    while True:
        password = input("New password: ")
        if not len(password) > 3:
            print("Password should be more than 5 characters, " + username )
            continue
        else:
            break
        print("")
    while True:
        age = input("Enter Your age: ")
        if not len(age) > 0:
            print("Age can't be blank, " + username )
            continue
        else:
            break
        print("")
    print("Creating account...")
    username = username[:3] + str(age)
    users[username] = {}
    users[username]["password"] = password
    users[username]["group"] = "user"
    time.sleep(2)
    print("")
    print("Account has been created, " + username)

---

username[：3]+str（age）

谢谢你的回答，它会在哪里显示你的用户名？我正试图在我的代码中添加此部分，但它不起作用。你能在代码中添加此部分吗？

name = 'John Soe'
age = 32
username = name[:3] + str(age)
print(username)

def register():
    while True:
        username = input("New username: ")
        if not len(username) > 1:
            print("Username should be more than 2 characters")
            continue
        else:
            break
        print("")
    while True:
        password = input("New password: ")
        if not len(password) > 3:
            print("Password should be more than 5 characters, " + username )
            continue
        else:
            break
        print("")
    while True:
        age = input("Enter Your age: ")
        if not len(age) > 0:
            print("Age can't be blank, " + username )
            continue
        else:
            break
        print("")
    print("Creating account...")
    username = username[:3] + str(age)
    users[username] = {}
    users[username]["password"] = password
    users[username]["group"] = "user"
    time.sleep(2)
    print("")
    print("Account has been created, " + username)