0123456789abcdef

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0123456789abcdef "[0]

The last expression "0123456789abcdef" [0] is a common technique that can quickly convert a number to a hexadecimal character ." 0123456789abcdef "is a string literal, type: Char [17] (in C) or const char [17] (in C ++ ), the converted pointer types are char * and const char * respectively. Therefore, "0123456789abcdef" [0] is the first element '0 '. This techniq

JavaScript script implements static page encryption instance code _javascript tips

(CORE_HMAC_MD5 (key, data);},\r\n\t\t\r\n\tb64_md5:\r\n ";strout+= "\t\tfunction (s) {return binl2b64 (CORE_MD5 (Str2binl (s), s.length * THIS.C";strout+= "Hrsz)"},\r\n\t\t\r\n\tbinl2b64:\r\n\t\tfunction (BinArray) {\r\n\t\t var tab = \ "ABCDE";strout+= "fghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz0123456789+\/\"; \r\n\t\t var ";strout+= "str = \" "\"; \r\n\t\t for (var i = 0; i strout+= "\r\n\t\t var triplet = ((binarray[i gt;gt; 2] gt;gt; 8 * (i%4) amp; 0xFF)";strout+= "strout+= "0xFF) str

Use the MD5 function under VC ++

Use Windows dynamic link library advapi32.dll. This dynamic link library provides the following MD5 functions: Md5init ( CTX );Md5update ( CTX, Buf, Len );Md5final ( CTX ); The usage is as follows: Create File common. h #include Create File common. cpp #include "stdafx.h"#include "common.h"//////////////////////////////////////////////////////////////////////// Construction/Destruction//////////////////////////////////////////////////////////////////////Ccommon::Ccommon(){}Ccommon::~Ccommon()

SQL Server Binary Conversion functions

16 binary string:--Mode 2CREATE FUNCTIONBINARY2HEXSTR (@bin VARBINARY(8000))RETURNS VARCHAR(8000) asBEGIN DECLARE @re VARCHAR(8000),@i INT SELECT @re="',@i=datalength(@bin) while @i>0 SELECT @re=substring('0123456789ABCDEF',substring(@bin,@i,1)/ -+1,1) +substring('0123456789ABCDEF',substring(@bin,@i,1)% -+1,1) +@re ,@i=@i-1 RETURN('0x'+@re)ENDGO-

Multiple implementations of js random color code _ javascript skills

This article introduces several implementation methods of JavaScript random color code. For more information about JS random colors, see. JS random colors. For example, you can see that many tag connections are colorful. That's all we need. Start as follows: There are two methods in total.One is to prepare a set of beautiful candidate colors, and the other is to randomly generate colors.. Implementation 1 The Code is as follows: Var getRandomColor = function (){Return '#' +(Function (color ){R

Bintools 16 Binary Conversion

Package De.rtner.misc; Public classBintools { Public StaticFinal String hex ="0123456789ABCDEF"; PublicBintools () {super (); } Public StaticString Bin2Hex (byte[] arg5) {String v0; if(Arg5 = =NULL) {V0=""; } Else{StringBuffer v1=NewStringBuffer (Arg5.length *2); intv0_1; for(V0_1 =0; V0_1 v0_1) { intV2 = (Arg5[v0_1] + the) % the; V1.append ("0123456789ABCDEF". CharAt (V2/

Analysis on using Javascript to obtain random colors

This article will talk about how to use Javascript to obtain random colors. here we need to know that Javascript to obtain random colors is mainly used for easy display during plotting. I hope you can get help from this article. When creating a pie chart or a label cloud, we usually need many colors in two ways. One is to prepare a set of beautiful candidate colors, and the other is to randomly generate colors. When there are many or unknown numbers, I think the latter is the only way out. Googl

JS generates random Colors

Method One:var function () { return ' # ' + (function(color) { return (color + = ' 0123456789abcdef ' [Math.floor (Math.random () *16)] ) (color.length = = 6)? Color:arguments.callee (color); }) (');}Randomly generated 6 characters and then strung together, the closure calls itself with the ternary operator to make the program become introverted.Method Two:var function () { return (function(m,s,c) { return (c? Arguments.callee (m,

Byte[] array with hexadecimal string and string conversion--Reprint

string conversion to hexadecimal string Method 1:/*** String converted to hexadecimal string*/public static string Str2hexstr (String str) {Char[] chars = "0123456789ABCDEF". ToCharArray ();StringBuilder sb = new StringBuilder ("");byte[] bs = Str.getbytes ();int bit;for (int i = 0; i bit = (Bs[i] 0x0f0) >> 4;Sb.append (Chars[bit]);bit = Bs[i] 0x0f;Sb.append (Chars[bit]);}return sb.tostring ();}hexadecimal string conversion into array Method 1:/***

A variety of ways to implement JS random color code _javascript skills

JS random color has a lot of places to use: For example, we see a lot of label connections are colorful. That's the one that needs to be here. Here's the start: There are two ways of thinking. one is to prepare a beautiful set of candidate colors, the second is to generate color randomly . Achieve 1 Copy Code code as follows: var getrandomcolor = function () { Return ' # ' + (function (color) { return (color + = ' 0123456789abcdef

SQL Server Binary Conversion functions

FUNCTIONBINARY2HEXSTR (@bin VARBINARY(8000))RETURNS VARCHAR(8000) asBEGIN DECLARE @re VARCHAR(8000),@i INT SELECT @re="',@i=datalength(@bin) while @i>0 SELECT @re=substring('0123456789ABCDEF',substring(@bin,@i,1)/ -+1,1) +substring('0123456789ABCDEF',substring(@bin,@i,1)% -+1,1) +@re ,@i=@i-1 RETURN('0x'+@re)ENDGO--TestSELECTDbo. BINARY2HEXSTR (2

SQL Server Binary Conversion functions

directly using convert, A SQL similar to the following does not have a return value:SELECT CONVERT (Varchar,convert (VARBINARY (50), 23785))So the following function is shown on the net to convert to a 16 binary string: 650 "this.width=650;" src= "http:// Common.cnblogs.com/images/copycode.gif "alt=" Copy Code "style=" Border:none rgb (221,221,221); Background-color:rgb ( 255,255,255); "/> --Way 2CREATE functionbinary2hexstr (@bin varbinary (8000)) Returnsvarchar (8000) ASBEGIN DECLARE @re var

Multiple implementation methods of js random color code

Javascript random colors are used in many places: for example, many tag connections are colorful. That's all we need. Start as follows: There are two methods in total.One is to prepare a set of beautiful candidate colors, and the other is to randomly generate colors.. Implementation 1Copy codeThe Code is as follows:Var getRandomColor = function (){Return '#' +(Function (color ){Return (color + = '0123456789abcdef '[Math. floor (Math. random () * 16)])

hexadecimal string converted to byte array

Work has such a demand before looking for a lot of no, finally have a can of hurriedly stay.Original: Http://blog.163.com/[email protected]/blog/static/113561841201013525720/string conversion to hexadecimal string Method 1:/*** String converted to hexadecimal string*/ Public Staticstring Str2hexstr (String str) {Char[] chars = "0123456789ABCDEF". ToCharArray (); StringBuilder SB=NewStringBuilder (""); byte[] bs =str.getbytes (); intbit; for(int

[JavaScript creates random colors] multiple ways to create random colors

8 when making a pie chart or tag cloud, we usually need a lot of color, method two. One is to prepare a beautiful set of candidate colors, and the second is to randomly generate colors. In a lot of or unclear, I think the latter is the only way out. Google a bit, organized as follows, according to the order of the more than descending. Ten Implementation 1 One A varGetrandomcolor =function(){ - return' # ' + -(function(color) { the return(Color + = ' 01

Multiple implementation methods of js random color code

Javascript random colors are used in many places: for example, many tag connections are colorful. That's all we need. Start as follows: There are two methods in total.One is to prepare a set of beautiful candidate colors, and the other is to randomly generate colors.. Implementation 1 Copy codeThe Code is as follows: var getRandomColor = function (){ Return '#' +(Function (color ){Return (color + = '0123456789abcdef '[Math. floor (Math. random () * 1

JS MD5 Encryption Code

() = = "900150983cd24fb0d6963f7d28e17f72";} /** Calculate the MD5 of a raw string*/function Rstr_md5 (s){Return Binl2rstr (BINL_MD5 (Rstr2binl (s), s.length * 8));} /** Calculate the HMAC-MD5, a key and some data (raw strings)*/function Rstr_hmac_md5 (key, data){var bkey = rstr2binl (key);if (Bkey.length >) bkey = Binl_md5 (Bkey, key.length * 8); var ipad = array, Opad = Array (16);for (var i = 0; i {Ipad[i] = bkey[i] ^ 0x36363636;Opad[i] = bkey[i] ^ 0x5c5c5c5c;} var hash = binl_md5 (rstr2b

PHP encryption is decrypted by JavaScript example

Binl2rstr (BINL_MD5 (Rstr2binl (s), s.length * 8));}/** Calculate the HMAC-MD5, a key and some data (raw strings)*/function Rstr_hmac_md5 (key, data){var bkey = rstr2binl (key);if (Bkey.length gt;) bkey = Binl_md5 (Bkey, key.length * 8);var ipad = array, Opad = Array (16);for (var i = 0; i {Ipad[i] = bkey[i] ^ 0x36363636;Opad[i] = bkey[i] ^ 0x5c5c5c5c;}var hash = binl_md5 (rstr2binl (data), Ipad.concat + data.length * 8);Return Binl2rstr (BINL_MD5 (Opad.concat (hash), 512 + 128));}/** Convert a

I2C tool for Linux I2C interface Read and Write__linux

---------- -------------------------------- ------------------------------ :-------------------------------- :-------------------------------- -------------------------------- M:---------------- /system/bin # See what devices and device addresses are on bus 0 above; /system/bin # i2cdump-f-y 0 0x34 No size specified (using byte-dataaccess) 0 1 2 3 4 5 6 7 8 9 a B c D E F 0123456789abcdef 00:38 the 0000 of all of the 8p.! ............ 10:05 5f 00 00 0

Convert Chinese characters to UTF8 encoding

Code | chinese | Convert//--------convert Chinese characters to UTF8 encoding------------------------// function EncodeUtf8 (S1) { var s = Escape (S1); var sa = s.split ("%"); var Retv = ""; if (Sa[0]!= "") { Retv = sa[0]; } for (var i = 1; i { if (sa[i].substring (0,1) = = "U") { Retv + + Hex2utf8 (Str2hex (sa[i].substring (1,5))); } else Retv + = "%" + sa[i]; } return RETV; } function Str2hex (s) { var c = ""; var n; var ss = "0123456789ABCDEF"; v

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