[算法导论]哈希表 @ Python

直接寻址方式：

class HashTable:
    def __init__(self, length):
        self.T = [None for i in range(length)]

class Data:
    def __init__(self, key, satelite_data):
        self.key = key
        self.satelite_data = satelite_data

class Solution:
    def DIRECT_ADDRESS_SEARCH(self, T, k):
        return T[k]

    def DIRECT_ADDRESS_INSERT(self, T, x):
        T[x.key] = x

    def DIRECT_ADDRESS_DELETE(self, T, x):
        T[x.key] = None