list 是一种元素个数可变的线性表,采用了分离式技术实现的动态顺序表。可以加入和删除元素,并在各种操作中维持已有元素的顺序(即保序)。
1.1 创建顺序表
# 创建顺序表
def CreateSeqList(self):
element = input("please enter(input #:end):")
while element != '#':
self.seqList.append(int(element))
element = input("please enter(input #:end):")
1.2 查找元素
# 查找顺序表中某一个元素
def FindElement(self):
key = int(input("please enter what you want to find:"))
if key in self.seqList:
keyPosition = self.seqList.index(key)
result = keyPosition
else:
result = "none"
return result
1.3 插入元素
# 在指定位置上插入元素
def InsertElement(self):
postion = int(input("请输入要插入的位置:"))
key = int(input("请输入要插入的值:"))
print("插入前顺序:", self.seqList)
self.seqList.insert(postion, key)
print("插入后顺序:", self.seqList)
1.4 删除元素
# 在指定位置上删除元素
def DeleteElement(self):
postion = int(input("请输入要删除元素的位置:"))
print("删除前的顺序表:", self.seqList)
if postion < len(self.seqList) and postion >= 0:
del self.seqList[postion]
return self.seqList
else:
print("不存在啊老铁,删除个毛线啊")
1.5 完整代码
class SequenceList:
# 初始化
def __init__(self):
self.seqList = [] # 初始化一个空表
# 创建顺序表
def CreateSeqList(self):
element = input("please enter(input #:end):")
while element != '#':
self.seqList.append(int(element))
element = input("please enter(input #:end):")
# 查找顺序表中某一个元素
def FindElement(self):
key = int(input("please enter what you want to find:"))
if key in self.seqList:
keyPosition = self.seqList.index(key)
result = keyPosition
else:
result = "none"
return result
# 在指定位置上插入元素
def InsertElement(self):
postion = int(input("请输入要插入的位置:"))
key = int(input("请输入要插入的值:"))
print("插入前顺序:", self.seqList)
self.seqList.insert(postion, key)
print("插入后顺序:", self.seqList)
# 在指定位置上删除元素
def DeleteElement(self):
postion = int(input("请输入要删除元素的位置:"))
print("删除前的顺序表:", self.seqList)
if postion < len(self.seqList) and postion >= 0:
del self.seqList[postion]
return self.seqList
else:
print("不存在啊老铁,删除个毛线啊")
# 遍历顺序表元素
def TraverseElement(self):
for i in range(len(self.seqList)):
print(self.seqList[i], end =' ')
# 判空
def IsEmpty(self):
return len(self.seqList) == 0
# 销毁顺序表
def DestorySeqList(self):
print("销毁前顺序表:", self.seqList)
self.__init__()
print("销毁后顺序表:", self.seqList)
# 测试
if __name__ == '__main__':
list = SequenceList()
list.CreateSeqList()
print(list.seqList)
print(list.FindElement())
list.InsertElement()
list.DeleteElement()
list.TraverseElement()
list.IsEmpty()
list.DestorySeqList()