线性表关于函数调用错误的问题

#学习线性表时，看一些参考书，比较值的大小却老是失败

class SequenceList(object):
    def __init__(self):
        self.SeqList = []
#2.创建顺序表函数
    def CreateSequenceList(self):
        Element = input("请输入元素(按#键结束):")
        while Element !='#':
            self.SeqList.append(int(Element)) #在顺序表尾端插入新元素
            Element = input("请输入元素:")
        print(self.SeqList[0])


#3.查找元素
    def FindElement(self):
        key = int(input('输入需要查找的元素:')) #接收用户输入的待查值，并将其转化为int型
        if key in self.SeqList:
            ipos = self.SeqList.index(key)
            print(self.SeqList[ipos],ipos+1)
        else:
            print("不存在")
#4.指定位置插入元素函数
    def InsertElement(self):
        iPos = int(input('输入待插入元素的位置:'))
        Element = int(input('请插入元素值:'))
        self.SeqList.insert(iPos,Element)
        print("插入元素后，当前顺序表为:\n",self.SeqList)
#5.指定位置删除元素
    def DeleteElement(self):
        dPos = int(input('请输入待删除元素的位置:'))
        print("正在删除元素",self.SeqList[dPos],"...")
        self.SeqList.remove(self.SeqList[dPos])
        print("删除后的顺序表:\n",self.SeqList)
#6.求顺序表中的最值函数
    def GetEXtremum(self):
        while True:
            print("数字1，查询最大值")
            print("数字2，查询最小值")
            print("数字3，查询最小值和最大值")
            print("数字0，退出")
            i = int(input("请输入:"))
            if i==1:
                print("最大值:",max(self.SeqList))
            elif i==2:
                print("最小值:",min(self.Seqlist))
            elif i==3:
                print("最大值:",max(self.SeqList))
                print("最小值:",min(self.Seqlist))
            elif i==0:
                break

zhengji = SequenceList()
zhengji.CreateSequenceList()[]([]())

总是有
Traceback (most recent call last):
File "D:\pythonProject1\venv\share\Lines.py", line 55, in
zhengji.GetEXtremum()
File "D:\pythonProject1\venv\share\Lines.py", line 46, in GetEXtremum
print("最小值:",min(self.Seqlist))
AttributeError: 'SequenceList' object has no attribute 'Seqlist'

你这代码没问题，我跑了

但是你最后两行写错了，应该是这样调用

zhengji = SequenceList()
zhengji.CreateSequenceList()
zhengji.FindElement()
zhengji.InsertElement()
zhengji.DeleteElement()
zhengji.GetEXtremum()