需求：get_formatted_name.py循环输出用户名，输入q结束程序
def get_formatted_name(first_name,last_name):
"""返回整洁的姓名"""
full_name=f"{first_name} {last_name}"
return full_name.title()
#这是一个无限循环
while True:
print("\nPlease tell me your name:")
print("(enter 'q' at any time to quit)")
f_name=input("First name:")
if f_name=='q':
break
l_name=input("Last name:")
if l_name=='q':
break
formatted_name=get_formatted_name(f_name,l_name)
print(f"\nHello,{formatted_name}")