3-2 问候语：
代码如下：
names = ["Mike" , "JoJo" , "Yoyo"]
for name in names:
print("Nice to meet you, " + name)
运行结果：
3-4 嘉宾名单：
代码如下：
names = ["Gates" , "Jobs" , "Zuckerberg"]
for name in names:
print("I sincerely invite you to dine with me, " + name + ".")
结果如下：
3-5 修改嘉宾名单 and 3-6 添加嘉宾：
代码如下：
def my_print(_names):
for name in _names:
print("I sincerely invite you to dine with me, " + name + ".")
names = ["Gates" , "Jobs" , "Zuckerberg"]
my_print(names)
#3-5
print("However, Jobs has a urgency, so I'm going to invite Jojo to attend my party. ")
names.remove("Jobs")
names.append("Jojo")
my_print(names)
#3-6
print("Further more, I find aother desk which is bigger. So, I want to invite three persons more.")
names.insert(0,"Pulb")
names.insert(3,"Yoyo")
names.append("Hey")
my_print(names)
结果如下：
3-8 放眼世界：
代码如下：
scenery=["Tokyo","London","Milan","California","L.A"]
print("Original list:")
print(scenery)
print("Temporary sorted list:")
print(sorted(scenery))
print("Original list:")
print(scenery)
print("Reverse list:")
print(sorted(scenery,reverse=True))
print("Original list:")
print(scenery)
print("Reverse list:")
scenery.reverse()
print(scenery)
print("Reverse again:")
scenery.reverse()
print(scenery)
print("Sort list:")
scenery.sort()
print(scenery)
print("Reverse list:")
scenery.sort(reverse=True)
print(scenery)
print("\n")
结果如下：
3-11 有意引发错误：
代码如下：
scenery=["Tokyo","London","Milan","California","L.A"] print(scenery[10])
结果如下：
