python从⼊门到实践答案_python编程：从⼊门到实践习题3-
4~3-7
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。
guests_list=['Bill Gates','Mao ze dong','Qin shi huang']
print("I'd like to invite "+guests_list[0]+","+guests_list[1]+" and "+guests_list[2]+" to my party.")
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。js特效代码使用方法
再次打印⼀系列消息，向名单中的每位嘉宾发出邀请。
guests_list=['Bill Gates','Mao ze dong','Qin shi huang']
print("I'd like to invite "+guests_list[0]+","+guests_list[1]+" and "+guests_list[2]+" to my party.")
print("I've been told that "+guests_list[0]+" can't attend to my party")
guests_list[0]='Bill Herrington'
print("I'd like to invite "+guests_list[0]+","+guests_list[1]+" and "+guests_list[2]+" to my party.")
3-6 添加嘉宾：
你刚到了⼀个更⼤的餐桌，可容纳更多的嘉宾。请想想你还想邀 请哪三位嘉宾。
以完成练习 3-4或练习 3-5时编写的程序为基础，在程序末尾添加⼀条 print 语 句，指出你到了⼀个更⼤的餐桌。
使⽤ insert()将⼀位新嘉宾添加到名单开头。
使⽤ insert()将另⼀位新嘉宾添加到名单中间。
使⽤ append()将后⼀位新嘉宾添加到名单末尾。
ahrefs是什么意思啊打印⼀系列消息，向名单中的每位嘉宾发出邀请。
guests_list=['Bill Gates','Mao ze dong','Qin shi huang']
print("I'd like to invite "+guests_list[0]+","+guests_list[1]+" and "+guests_list[2]+" to my party.")
print("I've been told that "+guests_list[0]+" can't attend to my party")
guests_list[0]='Bill Herrington'
print("I'd like to invite "+guests_list[0]+","+guests_list[1]+" and "+guests_list[2]+" to my party.")
print("I found a bigger table that can have more people to my party!")
guests_list.insert(0,'Lan lulu')
tributariesguests_list.insert(2,'Jin kela')
guests_list.append('Cai xu kun')
print("I'd like to invite "+guests_list[0]+","+guests_list[1]+","+guests_list[2]+","+guests_list[3]+","+guests_list[4]+" and
"+guests_list[5]+" to my party.")
3-7 缩减名单：
你刚得知新购买的餐桌⽆法及时送达，因此只能邀请两位嘉宾。
以完成练习 3-6时编写的程序为基础，在程序末尾添加⼀⾏代码，打印⼀条你只 能邀请两位嘉宾共进晚餐的消息。
使⽤ pop()不断地删除名单中的嘉宾，直到只有两位嘉宾为⽌。每次从名单中弹 出⼀位嘉宾时，都打印⼀条消息，让该嘉宾知悉你很抱歉，⽆法邀请他来共进 晚餐。
对于余下的两位嘉宾中的每⼀位，都打印⼀条消息，指出他依然在受邀⼈之列。
使⽤ del 将后两位嘉宾从名单中删除，让名单变成空的。打印该名单，核实程 序结束时名单确实是空的。
guests_list=['Bill Gates','Mao ze dong','Qin shi huang']
print("I'd like to invite "+guests_list[0]+","+guests_list[1]+" and "+guests_list[2]+" to my party.")
print("I've been told that "+guests_list[0]+" can't attend to my party")
guests_list[0]='Bill Herrington'
print("I'd like to invite "+guests_list[0]+","+guests_list[1]+" and "+guests_list[2]+" to my party.")
print("I found a bigger table that can have more people to my party!")
guests_list.insert(0,'Lan lulu')
guests_list.insert(2,'Jin kela')
guests_list.append('Cai xu kun')
print("I'd like to invite "+guests_list[0]+","+guests_list[1]+","+guests_list[2]+","+guests_list[3]+","+guests_list[4]+" and
"+guests_list[5]+" to my party.")
print("The new table couldn't arrive in time,so only two of you can be invited.")
表单制作注意事项
abandonded_guest=guests_list.pop(0)
学python编程入门print("Sorry about that,"+abandonded_guest+".")
abandonded_guest=guests_list.pop(0)
print("Sorry about that,"+abandonded_guest+".")
abandonded_guest=guests_list.pop(0)
print("Sorry about that,"+abandonded_guest+".")
abandonded_guest=guests_list.pop(0)
print("Sorry about that,"+abandonded_guest+".")
print("Come and have fun with us,"+guests_list[0]+".")
print("Come and have fun with us,"+guests_list[1]+".")
del guests_list[0]
del guests_list[0]
print(guests_list)
java羊了个羊源码

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