refusing to merge unrelated histories 各种技巧
先pull,因为两个仓库不同,发现refusing to merge unrelated histories,无法pull
因为他们是两个不同的项目,要把两个不同的项目合并,git需要添加一句代码,在git pull,
这句代码是在git 2.9.2版本发生的,最新的版本需要添加--allow-unrelated-histories
git pull origin master --allow-unrelated-histories
js正则替换 各种技巧
代码如下:
var
str
=
'纳兰雪'
;return
new
Array
(str.length
).join
('
)*
'+
str.substr
(-1
);
这种方法的原理是取最后一个字符,其他的根据字符串长度生成对应的*个数。通过new Array(str.length).join('*')获得元素的间隔,然后拼接这些间隔,拼出来的刚好是少一个字符,再加上截取的最后一个字符。
另一种方法:
'wuhaidong很牛逼的'
.replace
(/.(?=.)/g
,'
);*
'
这里主要用的是正则的(?=pattern)
,这东西还真没用过,平时看手册都不会去注意,原来这么有用的。可以理解为不占匹配位,不占匹配位就不会替换。
Linux 网卡启动失败 各种技巧
Bringing up interface eno16777736: Error: Connection activation failed: Device not managed by NetworkManager or unavailable
Just follow the below steps and everything will be ok...
1. Remove Network Manager from startup Services.
#chkconfig NetworkManager off
2. Add Default Net Manager
#chkconfig network on
3.Stop NetworkManager first
#service NetworkManager stop
4.and then start Default Manager
#service network start
5./etc/init.d/network restart
注册码 各种技巧
webstorm
http://idea.medeming.com
http://idea.iteblog.com/key.php
20180801可用
9MWZD5CC4E-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-ocfH5r7aj6756M8f6f+7MXdp2K0RxPCG2Yp9/iIydFQxHCSjqjUopo2yAxH8+EtTGm+w4dKPe+6tLqa/HOExPt9g3yOf29PU7oIwmqnIcnvZYGNCgNsCK7fyfxc2CX1whLZTByQ0LKylRshlsYz+HXg002E7q7bY0y3vbwxWLyNR5qY4EPa4WzfWjdnopCZfijgsU0bTRB51jiqVlLHONKjFFUmzPopUDwEHwDTnmNMEUAsluTaiirWIJwkmuFbsgmir+KUAxHvStOUgo68Vyaas7BicAWI1QiCqd1EvFIN/sGaZkRE9hK6FwkDN/hscDX1DCPY62ttgP/k1GvFOVA==-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
vmware
适用于 vmware fusion 10 和 vmware fusion pro 10序列号
FG3TU-DDX1M-084CY-MFYQX-QC0RD
socket.io 2 游戏服务器
socket.io 中文手册,socket.io 中文文档转载于:http://www.cnblogs.com/xiezhengcai/p/3956401.html
服务端
io.on(‘connection’,function(socket));//监听客户端连接,回调函数会传递本次连接的socket
io.sockets.emit(‘String’,data);//给所有客户端广播消息
io.sockets.socket(socketid).emit(‘String’, data);//给指定的客户端发送消息
socket.on(‘String’,function(data));//监听客户端发送的信息
socket.emit(‘String’, data);//给该socket的客户端发送消息
广播消息
//给除了自己以外的客户端广播消息 socket.broadcast.emit("msg",{data:"hello,everyone"}); //给所有客户端广播消息 io.sockets.emit("msg",{data:"hello,all"});
分组
socket.on('group1', function (data) { socket.join('group1'); }); socket.on('group2',function(data){ socket.join('group2'); });
客户端发送
socket.emit(‘group1’),就可以加入group1分组;
socket.emit(‘group2’),就可以加入group2分组;
一个客户端可以存在多个分组(订阅模式)
踢出分组
socket.leave(data.room);
对分组中的用户发送信息
//不包括自己 socket.broadcast.to('group1').emit('event_name', data); //包括自己 io.sockets.in('group1').emit('event_name', data);
broadcast方法允许当前socket client不在该分组内
获取连接的客户端socket
io.sockets.clients().forEach(function (socket) { //..... })
获取分组信息
//获取所有房间(分组)信息 io.sockets.manager.rooms //来获取此socketid进入的房间信息 io.sockets.manager.roomClients[socket.id] //获取particular room中的客户端,返回所有在此房间的socket实例 io.sockets.clients('particular room')
另一种分组方式
io.of('/some').on('connection', function (socket) { socket.on('test', function (data) { socket.broadcast.emit('event_name',{}); }); });
客户端
var socket = io.connect('ws://103.31.201.154:5555/some') socket.on('even_name',function(data){ console.log(data); })
客户端都链接到ws://103.31.201.154:5555 但是服务端可以通过io.of(‘/some’)将其过滤出来。
另外,Socket.IO提供了4个配置的API:io.configure, io.set, io.enable, io.disable。其中io.set对单项进行设置,io.enable和io.disable用于单项设置布尔型的配置。io.configure可以让你对不同的生产环境(如devlopment,test等等)配置不同的参数。
客户端
建立一个socket连接
var socket = io(“ws://103.31.201.154:5555”);
监听服务消息
socket.on('msg',function(data){ socket.emit('msg', {rp:"fine,thank you"}); //向服务器发送消息 console.log(data); });
socket.on(“String”,function(data)) 监听服务端发送的消息 Sting参数与服务端emit第一个参数相同
监听socket断开与重连。
socket.on('disconnect', function() { console.log("与服务其断开"); }); socket.on('reconnect', function() { console.log("重新连接到服务器"); });
socket.io 记 游戏服务器
var express = require('express'); var path = require('path'); var app = express(); var http = require('http').Server(app); var io = require('socket.io')(http); app.use(express.static(path.join(__dirname,'/public'))); io.on('connection', function(socket){ console.log('a user connected'); socket.on('msg', function(data){ console.log(data); socket.broadcast.emit('new msg', data); }); socket.on('disconnect',function(){ console.log('user disconnet'); }); }); http.listen(3000, function(){ console.log('listening on 3000'); });
前端
<!DOCTYPE html> <html> <head> <title>sk</title> </head> <script src="https://cdn.bootcss.com/socket.io/1.7.3/socket.io.js"></script> <script src="https://code.jquery.com/jquery-1.11.1.js"></script> <body> test<br/> <div id="content"></div> <input type="text" id="msg"> <input type="button" id="send_btn" value="Send" > </body> <script> window.onload=function(){ var socket = io.connect('http://127.0.0.1:3000'); socket.on('new msg', function(data){ console.log('<<'+data); $('#content').html($('#content').html()+'<br/>'+ data); }); console.log("-------------"); $('#send_btn').click(function(){ socket.emit('msg', $('#msg').val()); $('#msg').val(''); return false; }); } </script> </html>
SVN DELETE 各种技巧
常用操作
1.使用svn从工作拷贝删除文件只是预定要删除,当你提交,文件才会从版本库删除。
$ svn delete myfile
2.然而直接删除一个URL,你需要提供一个日志信息:
$ svn delete -m “Deleting file ‘yourfile'” file:///tmp/repos/test/yourfile
3.强制删除本地已修改文件的例子:
$ svn delete –force file
unity shader 内置变量 Unity游戏研究
官网Manual:http://docs.unity3d.com/Manual/SL-UnityShaderVariables.html
unity提供大量的内置变量,来供我们使用,主要包括一些 :矩阵运算/变形,光影,时间等等。用户可以在CGIncludes目录下的UnityShaderVariables.cginc进行查看。
_WorldSpaceCameraPos:float3——相机的世界坐标
_ProjectionParams:float4——投影参数(x=+-1,y=相机近裁剪面,z=相机远裁剪面,w=1/FarPlane)
_ScreenParams:float4——屏幕参数(x=相机渲染宽度,y=相机渲染高度,z=1+1/x,w=1+1/y)
typescript——BASE64 TypeScripts
/** * * @author * */ class Base64Util { public constructor() { } public static BASE64_CHARS:string = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; public static version:string = "1.0.0"; public static encode(data:string):string { // Convert string to ByteArray var bytes: egret.ByteArray = new egret.ByteArray(); bytes.writeUTFBytes(data); // Return encoded ByteArray return this.encodeByteArray(bytes); } private static encodeByteArray(data:egret.ByteArray):string { // Initialise output var output:string = ""; // Create data and output buffers var dataBuffer:Array<any>; var outputBuffer:Array<any> = new Array(4); // Rewind ByteArray data.position = 0; // while there are still bytes to be processed while (data.bytesAvailable > 0) { // Create new data buffer and populate next 3 bytes from data dataBuffer = new Array(); for (var i:number = 0; i < 3 && data.bytesAvailable > 0; i++) { dataBuffer[i] = data.readUnsignedByte(); } // Convert to data buffer Base64 character positions and // store in output buffer outputBuffer[0] = (dataBuffer[0] & 0xfc) >> 2; outputBuffer[1] = ((dataBuffer[0] & 0x03) << 4) | ((dataBuffer[1]) >> 4); outputBuffer[2] = ((dataBuffer[1] & 0x0f) << 2) | ((dataBuffer[2]) >> 6); outputBuffer[3] = dataBuffer[2] & 0x3f; // If data buffer was short (i.e not 3 characters) then set // end character indexes in data buffer to index of '=' symbol. // This is necessary because Base64 data is always a multiple of // 4 bytes and is basses with '=' symbols. for (var j:number = dataBuffer.length; j < 3; j++) { outputBuffer[j + 1] = 64; } // Loop through output buffer and add Base64 characters to // encoded data string for each character. for (var k:number = 0; k < outputBuffer.length; k++) { output += this.BASE64_CHARS.charAt(outputBuffer[k]); } } // Return encoded data return output; } public static decode(data:string):string { // Decode data to ByteArray var bytes:egret.ByteArray = this.decodeToByteArray(data); // Convert to string and return return bytes.readUTFBytes(bytes.length); } private static decodeToByteArray(data:String):egret.ByteArray { // Initialise output ByteArray for decoded data var output:egret.ByteArray = new egret.ByteArray(); // Create data and output buffers var dataBuffer:Array<any> = new Array(4); var outputBuffer: Array<any> = new Array(3); // While there are data bytes left to be processed for (var i:number = 0; i < data.length; i += 4) { // Populate data buffer with position of Base64 characters for // next 4 bytes from encoded data for(var j: number = 0; j < 4 && i + j < data.length; j++) { dataBuffer[j] = this.BASE64_CHARS.indexOf(data.charAt(i + j)); } // Decode data buffer back into bytes outputBuffer[0] = (dataBuffer[0] << 2) + ((dataBuffer[1] & 0x30) >> 4); outputBuffer[1] = ((dataBuffer[1] & 0x0f) << 4) + ((dataBuffer[2] & 0x3c) >> 2); outputBuffer[2] = ((dataBuffer[2] & 0x03) << 6) + dataBuffer[3]; // Add all non-padded bytes in output buffer to decoded data for(var k: number = 0; k < outputBuffer.length; k++) { if (dataBuffer[k+1] == 64) break; output.writeByte(outputBuffer[k]); } } // Rewind decoded data ByteArray output.position = 0; // Return decoded data return output; } }
nodejs跨域问题 各种技巧
node配置
app.all('*', function(req, res, next) { res.header("Access-Control-Allow-Origin", "*"); res.header('Access-Control-Allow-Methods', 'PUT, GET, POST, DELETE, OPTIONS'); res.header("Access-Control-Allow-Headers", "X-Requested-With"); res.header('Access-Control-Allow-Headers', 'Content-Type'); next(); });