1.list和tuple共同点和区别
区别：
1.list中的元素可修改，tuple中的元素不可修改
2.list的元素写在 [ ] 中，tuple中的元素写在 () 中
共同点
1.是序列
2.可以存储不同类型的数据
2.定义一个变量，包含现在所学的数据类型
3.目前学到的序列有哪些？
将除tuple之外的序列转换为tuple
将除list之外的序列转换为list
4.tuple中有哪些操作方法（按住Ctrl点击单词就可查看）
class tuple(object):
"""
Built-in immutable sequence.
If no argument is given, the constructor returns an empty tuple.
If iterable is specified the tuple is initialized from iterable's items.
If the argument is a tuple, the return value is the same object.
"""
def count(self, *args, **kwargs): # real signature unknown
""" Return number of occurrences of value. """
pass
def index(self, *args, **kwargs): # real signature unknown
"""
Return first index of value.
Raises ValueError if the value is not present.
"""
pass
def __add__(self, *args, **kwargs): # real signature unknown
""" Return self+value. """
pass
def __class_getitem__(self, *args, **kwargs): # real signature unknown
""" See PEP 585 """
pass
def __contains__(self, *args, **kwargs): # real signature unknown
""" Return key in self. """
pass
def __eq__(self, *args, **kwargs): # real signature unknown
""" Return self==value. """
pass
def __getattribute__(self, *args, **kwargs): # real signature unknown
""" Return getattr(self, name). """
pass
def __getitem__(self, *args, **kwargs): # real signature unknown
""" Return self[key]. """
pass
def __getnewargs__(self, *args, **kwargs): # real signature unknown
pass
def __ge__(self, *args, **kwargs): # real signature unknown
""" Return self>=value. """
pass
def __gt__(self, *args, **kwargs): # real signature unknown
""" Return self>value. """
pass
def __hash__(self, *args, **kwargs): # real signature unknown
""" Return hash(self). """
pass
def __init__(self, seq=()): # known special case of tuple.__init__
"""
Built-in immutable sequence.
If no argument is given, the constructor returns an empty tuple.
If iterable is specified the tuple is initialized from iterable's items.
If the argument is a tuple, the return value is the same object.
# (copied from class doc)
"""
pass
def __iter__(self, *args, **kwargs): # real signature unknown
""" Implement iter(self). """
pass
def __len__(self, *args, **kwargs): # real signature unknown
""" Return len(self). """
pass
def __le__(self, *args, **kwargs): # real signature unknown
""" Return self<=value. """
pass
def __lt__(self, *args, **kwargs): # real signature unknown
""" Return self
5.list中有哪些操作方法
class list(object):
"""
Built-in mutable sequence.
If no argument is given, the constructor creates a new empty list.
The argument must be an iterable if specified.
"""
def append(self, *args, **kwargs): # real signature unknown
""" Append object to the end of the list. """
pass
def clear(self, *args, **kwargs): # real signature unknown
""" Remove all items from list. """
pass
def copy(self, *args, **kwargs): # real signature unknown
""" Return a shallow copy of the list. """
pass
def count(self, *args, **kwargs): # real signature unknown
""" Return number of occurrences of value. """
pass
def extend(self, *args, **kwargs): # real signature unknown
""" Extend list by appending elements from the iterable. """
pass
def index(self, *args, **kwargs): # real signature unknown
"""
Return first index of value.
Raises ValueError if the value is not present.
"""
pass
def insert(self, *args, **kwargs): # real signature unknown
""" Insert object before index. """
pass
def pop(self, *args, **kwargs): # real signature unknown
"""
Remove and return item at index (default last).
Raises IndexError if list is empty or index is out of range.
"""
pass
def remove(self, *args, **kwargs): # real signature unknown
"""
Remove first occurrence of value.
Raises ValueError if the value is not present.
"""
pass
def reverse(self, *args, **kwargs): # real signature unknown
""" Reverse *IN PLACE*. """
pass
def sort(self, *args, **kwargs): # real signature unknown
"""
Sort the list in ascending order and return None.
The sort is in-place (i.e. the list itself is modified) and stable (i.e. the
order of two equal elements is maintained).
If a key function is given, apply it once to each list item and sort them,
ascending or descending, according to their function values.
The reverse flag can be set to sort in descending order.
"""
pass
def __add__(self, *args, **kwargs): # real signature unknown
""" Return self+value. """
pass
def __class_getitem__(self, *args, **kwargs): # real signature unknown
""" See PEP 585 """
pass
def __contains__(self, *args, **kwargs): # real signature unknown
""" Return key in self. """
pass
def __delitem__(self, *args, **kwargs): # real signature unknown
""" Delete self[key]. """
pass
def __eq__(self, *args, **kwargs): # real signature unknown
""" Return self==value. """
pass
def __getattribute__(self, *args, **kwargs): # real signature unknown
""" Return getattr(self, name). """
pass
def __getitem__(self, y): # real signature unknown; restored from __doc__
""" x.__getitem__(y) <==> x[y] """
pass
def __ge__(self, *args, **kwargs): # real signature unknown
""" Return self>=value. """
pass
def __gt__(self, *args, **kwargs): # real signature unknown
""" Return self>value. """
pass
def __iadd__(self, *args, **kwargs): # real signature unknown
""" Implement self+=value. """
pass
def __imul__(self, *args, **kwargs): # real signature unknown
""" Implement self*=value. """
pass
def __init__(self, seq=()): # known special case of list.__init__
"""
Built-in mutable sequence.
If no argument is given, the constructor creates a new empty list.
The argument must be an iterable if specified.
# (copied from class doc)
"""
pass
def __iter__(self, *args, **kwargs): # real signature unknown
""" Implement iter(self). """
pass
def __len__(self, *args, **kwargs): # real signature unknown
""" Return len(self). """
pass
def __le__(self, *args, **kwargs): # real signature unknown
""" Return self<=value. """
pass
def __lt__(self, *args, **kwargs): # real signature unknown
""" Return self 
