python实现哈希表

# python 实现哈希表class HashTable:"""哈希函数的构造解决冲突"""def __init__(self, source):self.source = sourceself._index = []self._val = []self.table = []self._mod = 13def Output(self):print(self._index)print(self._val)def _create_table(self):"""初始化哈希表哈希表长度最短为取余因子_mod,一般为源数据长度"""if len(self.source) < self._mod:length = self._modelse:length = len(self.source)self._index = [i for i in range(length)]self._val = [None for i in range(length)]def _func_hash(self):"""构建哈希函数"""for sour in self.source:remainder = sour % self._modif self._val[remainder] is None:self._val[remainder] = sourelse:# 处理冲突rem = remainderwhile self._val[rem] is not None:if(rem + 1 >= len(self._val)):rem = -1rem += 1self._val[rem] = sourself.table = list(zip(self._index, self._val))def get(self, num):"""查找"""rem = num % self._modif self._val[rem] != num:while True:if(rem + 1 >= len(self._val)):rem = 0if self._val[rem] == num:breakrem += 1return remdef run(self):self._create_table()self._func_hash()self.Output()if __name__ == '__main__':test = [12, 15, 17, 21, 22, 25, 13, 0]h = HashTable(test)h.run()h.get(12)