9.修改列表(3-4,3-5)

3-4 嘉宾名单：如果你可以邀请任何人一起共进晚餐（无论是在世的还是故去的），
你会邀请哪些人？请创建一个列表，其中包含至少 3 个你想邀请的人；然后，使用这个
列表打印消息，邀请这些人来与你共进晚餐。

person_invited =['jim','jack','lucy']
print(person_invited[0].title()+",i would like to invite you for dinner!")
print(person_invited[1].title()+",i would like to invite you for dinner!")
print(person_invited[2].title()+",i would like to invite you for dinner!")

F5运行：

Jim,i would like to invite you for dinner!

Jack,i would like to invite you for dinner!

Lucy,i would like to invite you for dinner!

3-5 修改嘉宾名单：你刚得知有位嘉宾无法赴约，因此需要另外邀请一位嘉宾。
 以完成练习 3-4 时编写的程序为基础，在程序末尾添加一条 print 语句，指出哪
位嘉宾无法赴约。
 修改嘉宾名单，将无法赴约的嘉宾的姓名替换为新邀请的嘉宾的姓名。
 再次打印一系列消息，向名单中的每位嘉宾发出邀请。

person_invited =['jim','jack','lucy']
print("\tMr.jim unable to attend!,I will invite kate !")
person_invited[0] = 'kate'
print(person_invited)
print(person_invited[0]+",i would like to invite you for dinner!")
print(person_invited[1]+",i would like to invite you for dinner!")
print(person_invited[2]+",i would like to invite you for dinner!")

      Mr.jim unable to attend!,I will invite kate !
['kate','jack','lucy']

kate,i would like to invite you for dinner!

jack,i would like to invite you for dinner!

Lucy,i would like to invite you for dinner!