线性表的插入操作实现

 1 class linearlist_insert_elem():
 2     def __init__(self, data, maxsize):
 3         self.data = data
 4         self.maxsize = maxsize
 5         self.length = len(data)
 6     def list_insert(self, i, e):
 7         if self.length == self.maxsize:
 8             print("线性表%s已满，无法插入元素" % (self.data))
 9             # return -1
10         if i < 1 or i > self.length:
11             print("无法在位置%s插入元素" % i)
12             # return 0
13         else:
14             #在线性表队尾追加一个元素0
15             self.data.append(0)
16             for i in range(self.length, i, -1):
17                 self.data[i] = self.data[i - 1]
18             self.data[i] = e
19             self.length += 1
20             print("在位置%s插入元素%s成功"%(i,e))
21         return self.data
22 if __name__ == ‘__main__‘:
23     ob = linearlist_insert_elem([1, 2, 3, 7, 8, 9, 10, 11, 12, 13, 14], 20)
24     print(ob.data)
25     print(ob.length)
26     ob.list_insert(20, 17)
27     print(ob.data)
28     ob.list_insert(6, 17)
29     print(ob.data)