# 線性表定義
class Lnode(object):
  def __init__(self,last):
    self.data = [None for i in range(100)]
    self.last = last  # 線性表長度12345

# 1.初始化建立空的線性表
def MakeEmpty(num):
  PtrL = Lnode(num)
  return PtrL

# 測試建立空的線性表
s = MakeEmpty(10)
print(s.data[0:s.last])
print(s.last)12345678910

# 2.查找給定值的位置
def Find(x, L):
  i =0
  while(i <= L.last and L.data[i] != x):
    i+=1
  if(i> L.last):
    return -1
  else:
    return i

# 測試查找函數(shù)
num = [0,1,2,3,4,5,6,7,8,9]
L = Lnode(10)
for i in range(10):
  L.data[i] = num[i]
print("建立新的線性表")
print(L.data[0:L.last])
print("查找元素2")
print("下標(biāo)為：")
print(Find(2,L))
print("查找元素12")
print("下標(biāo)為：")
print(Find(12,L)) # 找不到返回-1

# 3.插入（在第i(0<=i<=n)位置上插入一個值為x的新元素）
def Insert(x,i,L):
  if i<0 or i>L.last:
    print("位置不合理")
    return
  else:
    for j in range(L.last,i-1,-1):
      L.data[j+1] = L.data[j]
    L.data[i] = x
    L.last+=1
  return


# 測試插入函數(shù)
num = [0,1,2,3,4,5,6,7,8,9]
L = Lnode(10)
for i in range(10):
  L.data[i] = num[i]
print("建立新的線性表")
print(L.data[0:L.last])
print("在位序3插入元素6")
Insert(6,3,L)
print(L.data[0:L.last])

# 4.刪除第i(0<=i<=n-1)個位置上的元素
def Delete(i,L):
  if i<0 or i>=L.last:
    print("不存在該元素")
    return
  else:
    for j in range(i,L.last-1):
      L.data[j] = L.data[j+1]
    L.last -=1
    return

# 測試刪除函數(shù)
num = [0,1,2,3,4,5,6,7,8,9]
L = Lnode(10)
for i in range(10):
  L.data[i] = num[i]
print("建立新的線性表")
print(L.data[0:L.last])
print("刪除位序3的元素")
Delete(3,L)
print(L.data[0:L.last])