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Php uses base64 to encrypt and decrypt image example sharing

Copy codeThe Code is as follows: // File name: base64.php$ Data = "/9j/4 users/users // users/j5 + users + Tl5ufo6ery8/T19vf4 + fr/2 gAMAwEAAhEDEQA/users // AJ/J/wDvs0AI2qX/APz + z/Jun/DQBE2sakOl/cf9/Jun/6CgBdK0q41QS/Jun/wnmmtudow.gbp/Jun/3B/Jun/9/Jun + BycJ/Jun + Supervisor/mKAOdc0wPYbX/j1h/3F /lSA858RtjX7z/f/examples + examples/j1h/3F/examples/AG/examples/JAyaAE/tu/XTTp/samples/7i/yoA8w8UK // examples/55v8AkaAArJ/Examples /queues/lm/queues/LN/++ TQB7Zag/ZYeP4F/queues/

Oracle learning-Set Operations

I. Set operation operator UNION: (UNION) returns the UNION ALL records of the Two sets that remove duplicate values. (UNION) returns the records INTERSECT (intersection) of the Two sets that remove duplicate values) returns all records of the two sets. duplicate records only take the MINUS once: (difference set) return belongs to the first set, however, all records that do not belong to the second set must have the same number of columns and have the same type. The result of the set operation us

Canvas of HTML5

= ' Left ';//Set Horizontal alignmentContext.textbaseline = ' alphabetic ';//Set Vertical alignmentContext.font = ' bold 16px sans-serif ';//Setting the output font styleContext.filltext (' (100/200) ', 50, 220);//output text in specified coordinatesContext.filltext (' (150/50) ', 115, 30); Context.filltext (' (200/200) ', 150, 220); Context.filltext (' (100/120) ', 40, 100); Context.filltext (' (200/120) ', 180, 100); //3. Draw with a strokeContext.stroke ();}//draw a parabolic linefunctionCrea

Describes the evolution of core switch architecture in detail

adopts the distributed CrossBar and distributed switching architecture to solve problems such as large-capacity switching and multi-service provision, therefore, it can help users' networks better achieve these convergence. For the integration of data, voice, and video services, the CrossBar chip of the Business Board can simplify the large data streams of voice and video into a fixed-length switching mode, improving the switching efficiency. This is one of the reasons why BigHammer6800 can ach

RedHat Enterprise Linux7.0 install Oracle12c, linux7.0oracle12c

oracle Installation File is too old. You need to delete the {ORACLE_HOME}/lib/stubs directory (for my settings,/opt/oracle/product/12.1.0.1.0/lib/stubs Cd/opt/oracle/product/12.1.0.1.0/lib Rm-rf stubs 2) click Retry on the graphic installation page to continue. An error is reported again. Ins_rdbms.mk Libclient12.a (kpue. o): undefined reference to symbol 'ons _ subscriber_close' .... Libons. so: cocould not read symbols: Invalid operation Modify rows 883 and 901 of rdbms/lib/ins_rdbms.mk

Go language type Method Values vs. method Expressions

the method values mode, the compiler automatic conversion, any form can be called the successful FMT. Println ("------------------------") SW: = (AMP;S1). Setagef2: = (S1). GETAGESW (880) fmt. Println ("s1=", S1) fmt. Println ("s1.copy.Getage () =", F2 ()) fmt. Println ("s1=", s1) SS: = S1. SETAGEF3: = S1. Getagess (990) FMT. Println ("s1=", S1) fmt. Println ("s1.copy.Getage () =", F3 ()) Fmt. Println ("s1=", s1) se: = s2. SETAGEF4: = s2. Getagese (a

Apache + php + mysql Configuration Guide _ MySQL

   ./Configure    Make    Make install    Depending on the machine performance, the compilation process takes some time. after compilation, the system installs mysql under/usr/local by default.    After the installation is complete, start the mysql process.    Cd/usr/local/bin    ./Mysql_install_db (install the basic mysql database)    ./Safe_mysqld (starts the process and transfers it to the background)    Here mysql is installed. run./mysql to check whether the database can be connected. if

Use the execve () function to write non-nops exploit

* file;854: int retval;855: int I;856:857: file = open_exec (filename );858:859: retval = PTR_ERR (file );860: if (IS_ERR (file ))861: return retval;862:863: bprm. p = PAGE_SIZE * MAX_ARG_PAGES-sizeof (void *);864: memset (bprm. page, 0, MAX_ARG_PAGES * sizeof (bprm. page [0]);865:866: bprm. file = file;867: bprm. filename = filename;868: bprm. sh_bang = 0;869: bprm. loader = 0;870: bprm.exe c = 0;871: if (bprm. argc = count (argv, bprm. p/sizeof (void *) 872: allow_write_access (file );873. fp

The first chapter of Delphi-Driven development--the principle of realization

}Pitch_c:dword = 523; {c-523,25 Hz}Pitch_cs:dword = 554; {C #-554,37 Hz}Pitch_d:dword = 587; {d-587,33 Hz}Pitch_ds:dword = 622; {d#-622,25 Hz}Pitch_e:dword = 659; {e-659,25 Hz}Pitch_f:dword = 698; {f-698,46 Hz}Pitch_fs:dword = 740; {F #-739,99 Hz}Pitch_g:dword = 784; {g-783,99 Hz}Pitch_gs:dword = 831; {g#-830,61 Hz}Pitch_a:dword = 880; {a-880,00 Hz}Pitch_as:dword = 988; {b-987,77 Hz}Pitch_h:dword = 1047; {h-1046,50 Hz}{We is going to play c-major chor

Canvas detective conan-canvas exercises, canvas-canvas

, 1.6 * Math. PI); ctx. stroke (); ctx. beginPath (); ctx. moveTo (145,400); ctx. lineTo (147,460); ctx. lineTo (220,535); ctx. lineTo (260,550); ctx. lineTo (308,550); ctx. stroke (); ctx. beginPath (); ctx. arc (260,410, 90, Math. PI * 0.55, Math. PI); ctx. stroke (); ctx. beginPath (); ctx. moveTo (160,410); ctx. lineTo (180,410); ctx. lineTo (205,430); ctx. stroke (); // hair ctx. beginPath (); ctx. moveTo (260,0); ctx. quadraticCurveTo (76,174,150,380); ctx. stroke (); ctx. beginPath (); ct

Analysis of simple Windows formatting string program examples

next SEH record0012FFB4 004024A4 SE processing program0012FFB8 004050A8 formatvu.004050A80012 FFBC 00000000....0012FFE0 ffffffff seh chain tail0012FFE4 77E7F0B4 SE Handler0012FFE8 77E68EC8 KERNEL32.77E68EC8 SEH linked list:SEH chain for main threadAddress SE Handler0012FFB0 formatvu.004024A40012FFE0 KERNEL32.77E7F0B4 Submit:%. 8X %. 8X %. 8X %. 8X %. 8X %. 8X %. 8X %. 8X %. 8X %. 8X %. 8X % n corresponds to the address pointed to by stack 0012FFB00012FFE0: pointer to the next SEH record-- "0012

Test and prevent SQL Injection for university websites

converted into char (111,111,116, 46,105,110,105,). submit the following statement, as shown in result 2.Http://xxx.xxx.edu.cn/board/show_board_news.php? Board_news_id = 884/**/and/**/1 = 2/**/union/**/select/**/, load_file (char, 111,111,116, 46,105,110,105 ),Figure 2Check the content of php. ini. Since the system is Window 2000 Advanced Server, the system directory should be C: winnt. Try C: winntphp. ini. Submit the following statement, as shown in result 3. It can be seen that magic_qutoes_

How to view memory in Android (top)

: Here PSS and mode four PSS Total are not consistent, there are subtle differences. Why is it? This is because the Procrank command and the Meminfo command use a different kernel mechanism, so the results are slightly different .NOTE 2: Here the USS and the PRIV Dirtyd of the way four are almost equal. They seem to express the same meaning. But the explanations for what they are now are not quite the same.is the private dirty here (this means that the page cannot be changed)? puzzle! mode Seven

Sonar6.0 Application II: Sonar Web Interface Configuration and runner, scanner integration for command line code analysis

analysis):Sonar-scanner4. View the results of scanner code quality analysis in the Web.650) this.width=650; "title=" image "style=" border-top:0px;border-right:0px;background-image:none;border-bottom:0 px;padding-top:0px;padding-left:0px;border-left:0px;padding-right:0px; "border=" 0 "alt=" image "src=" http:// S3.51cto.com/wyfs02/m01/89/13/wkiom1gg7a7irtvaaae14gi2lzo261.png "height=" 880 "/>V. Using Sonar-runner for Code quality analysis1. Modify th

Python 2.7_ Multi-process Access brief book Special data (i)

' Count = Cursor.execute (sql ) Print U ' has entered%s data '% Count print u ' is getting feature URL ' All_cate_urls=cursor.fetchall () return all_cate_urls except Mysqldb.error, E:print url,e "multi-Process Execution" Def get_allcate_urls (): urls=get_cate URLs () pool = Pool (processes=4) Pool.map (insert_into_mysql,urls) allcate_urls=get_allcate_urls_from_mysql () re Turn Allcate_urls "Get firstData to all topics next get data for each topic "If __name__ = = ' __main__ ': Allcat

Python3 using Pyinstaller to pack apscheduler out of the wrong

the answer https://github.com/pyinstaller/pyinstaller/issues/1713It's probably about creating a hook-ctypes.macholib.py with the following:# !/usr/bin/env Python3 # -*-coding:utf-8-*- from Import = copy_metadata ('apscheduler')Then add the--additional-hooks-dir= when you packPyinstaller-f test1.py--additional-hooks-dir=.However, a new problem has arisen Importerror:no module namedImporterror:no module namedTraceback (most recent): File"site-packages\apscheduler\schedulers\base.py", Line

HTTP protocol Understanding

+ Resource Path +http version (separated by spaces): GET index.html http/1.1The request method is divided into get and post two ways, the difference is as follows:The Get method generates a request that loads the parameter part behind the URL, in the? As a sign, that is, confidentiality is not strong, get way to transmit a limited amount of data (not more than 1KB)Post mode of strong confidentiality, transmission size is unlimited, so the actual development of this way is more favored!2) Reques

My Android Advanced Tour------>android The solution of Chinese garbled problem when using CMD window for adb logcat

* 20261 x-cp20261 t.61 20269 x-cp20269 ISO-6937 20273 IBM 273 IBM EBCDIC (Germany) 20277 IBM277 IBM EBCDIC (Denmark-norway) 20278 IBM278 IBM EBCDIC (Finland-sweden) 2 0280 IBM280 IBM EBCDIC (Italy) 20284 IBM284 IBM EBCDIC (Spain) 20285 IBM285 IBM EBCDIC (UK) 20290 IBM290 IBM EBCDIC (Japanese Katakana) 20297 IBM297 IBM EBCDIC (France) 20420 IBM420 IBM EBCDIC (Arabic) 20423 IBM42 3 IBM EBCDIC (Greek) 20424 IBM424 IBM EBCDIC (Hebrew) 20833 x-ebcdic-koreanextended IBM EBCDIC (Korean Extended ) 208

OPEN-E DSS V7 Application series eight remote access and administrator password recovery

Continuous OPEN-E DSS V7 application series of seven-volume group and volume managementOne, remote access1. Enable remote access on the DSS hostTo access the administrative DSS host through the Web, under Settings, under Administrator settings, enable remote access.Such as:You can set the IP address that is allowed to be accessed, and null to indicate that all are allowed.Set port: Sets the access port, default is 22222;The password that requires remote access. Remember that the user at remote

Project Plan Summary

Project Plan Summary:Name: baijiephotography unit (minutes) Date: 2015.3.15 (weekly activity summary table) Date Task Lectures Writing Programs Read the textbook Prepare for the exam Total Day Tuesday 280 280 Wednesday 100 40 140 Thursday 300 50 350 Friday 200 260 Saturday

Total Pages: 15 1 .... 7 8 9 10 11 .... 15 Go to: Go

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