python实现简单的LRU算法

# -*- coding: utf-8 -*-data = [1, 3, 5, 2, 1, 7, 2]list = []def lru():    for i in data:        if i in list:            del list[list.index(i)]        list.insert(0, i)        if __name__ == '__main__':    lru()    print list