连击 天
fork: star:
ICE 交互式连接设施Interactive Connectivity Establishment (ICE) 是一个允许你的浏览器和对端浏览器建立连接的协议框架。在实际的网络当中,有很多原因能导致简单的从A端到B端直连不能如愿...
文档:https://developer.mozilla.org/zh-CN/docs/Web/API/WebRTC_API 播放声音: Title
select a.users,b.u_name from ( select GROUP_CONCAT(u_name) as users,p_id from webusers GROUP BY p_id ) a INNER JOIN webusers b on a.p_id =b.u_id......
` insert into news(news_title,news_abstract,news_code) VALUES('这是一条PHP新闻','PHP新闻相关的新闻摘要' ,MD5(CONCAT('这是一条PHP新闻','PHP新闻相关的新闻摘要'))) on DUPLICATE key...
select * from user_level order by id in(4,6,2) and id<>2 desc ,user_total desc
select user_name,sign_date,IF(@pre=user_name,@rownum:=@rownum+1,@rownum:=1), @pre:=user_name from ( select user_name,sign_date from user_sign GROUP BY user_name,sign_date ORDER ...
`package com.bianmirj; /** 数组的稀松算法 */ public class ScarceArray { public static void main(String[] args) { //准备好源数组 int chessArr1[][] = new int[11][11]; chessArr1[1...
思维 1: 按组找出最大天数 2:inner join 交集 查出最大天数的数据 select a.* from prod_sales a INNER JOIN (select prod_class,max(sales_date) as sn from prod_sales GROUP BY prod_cla...
首先看一张图片 select max(paymoney) as mp,user_name from users_buy group by user_name //第一步 更新语句也可以 inner join update users_score a INNER JOIN (select max(paymoney) a...
select p_type,p_name,p_view, IF(@pre=p_type,@rownum:=@rownum+1,@rownum:=1),@pre:=p_type from (select a.p_type,a.p_name,a.p_view from products a GROUP BY a.p_type,a.p_name order ...
SELECT p_name,@numrow:=@numrow+1 as mynum from products,(SELECT @numrow:=0) b // (SELECT @numrow:=0) 相当于set @xxx=xxxx;......
``#!/usr/bin/expect -f set loginpass "123456" set timeout 300 spawn scp -r /Users/qurongxiang/Desktop/www root@192.168.16.100:/var/ #spawn ssh root@192.168.16.100 #expect { #-re...
你可以已经网上找了一些方法发现 1:initialize swift4已经无法重写 // // ViewController.swift // TestOnce // // Created by point on 2018/5/22. // Copyright © 2018年 whiteboard...
没有更多内容
加载失败,请刷新页面
文章删除后无法恢复,确定删除此文章吗?
动弹删除后,数据将无法恢复
评论删除后,数据将无法恢复