据说可以闪呼服务器的电话，然后返回号码

因为 tx 云不能收各种砖啊，阿里有大数据，不敢不用，酱紫。

qq 浏览器无法登录，没有任何提示。

为什么又是中文又是英文的？

@davidli (a,b)这个是数组还是什么？楼主不是JAVA的，楼主PHP

@ushuz 额。换就几下CTRL的事。
试啦啊，感觉要账号。
看过本站的代码啊，都是有用户的，难道不是？

@cbsw @lincanbin @ushuz @imlonghao

Recommend函数：

def Recommend(user,train,W):
--- rank = dict()
--- interacted_items = train[user]
--- for v , wuv in sort(W[u].items,key = itemgetter(1),reverse = True)[0:k]:
--- --- for i ,rvi in train[v].items:
--- --- --- if i in interacted_items:
--- --- --- --- continue
--- --- --- rank[i] += wuv * rvi
--- return rank

-----------------------------------------------------------------

PS：像for v , wuv in sort这样的表达的什么啊？

UserSimilarity函数：（这是第二段）

#!/usr/bin/env python
# coding=utf-8
def UserSimilarity(train):
--- #建立倒排表
--- item_users = dict()
--- for u,items in train.items():
--- --- for i in item.keys():
--- --- if i not in item_users:
--- --- --- items_users[i] = set()
--- --- item_users[i].add(u)
--- #item_users即为物品到用户的倒排表
--- #计算用户之间的相关度
--- C = dict()#任意用户之间的相关度
--- N = dict()#用户正反馈物品的数目
--- for i ,users in item_users:
--- --- for u in users:
--- --- --- N[u] += 1
--- --- --- for v in users:
--- --- --- --- if u == v:
--- --- --- --- --- continue:
--- --- --- --- C[u][v] += 1
--- #最后计算结果矩阵
--- W = dict()
--- for u ,related_users in C.items():
--- --- for v,cuv in related_users:
--- --- --- W[u][v] = cuv / math.sqrt(N[u]* N[v]*1.0)
return W

User_Similarity函数？：

def User_Similarity(train):
--- W=dict()
--- for u in train.keys():
--- --- for v in train.keys():
--- --- --- if u == v:
--- --- --- --- continue;
--- --- --- W[u][v] = len(train[u],train[v])
--- --- --- W[u][v] /= math.sqrt(len(train[u]) * len(train[v]) * 1.0)

----------------------------------------------------------------------
PS：楼主还是不喜欢本站贴代码的方式，各位见谅下

虽说写程序的都该有github的账号。但是，如果不喜欢用github这样的网站，岂不是在本网站贴代码就一坑啊！
还是不习惯一个网站都没有自己的代码高亮编辑。
像楼主这样新来的， 就不知道该怎么贴代码

@cbsw @lincanbin @ushuz @imlonghao
有点麻烦啊。如果没有github账号，那是不是就没法帖gist的代码啦啊？

有难度