erd symbols

Often see a lot of friends QQ nickname has a lot of special custom symbol is not feel very personality? For many computer enthusiasts friends, a lot of special symbols believe that few friends can play the whole. The following article will share with you how to play a variety of personality special symbols and commonly used special symbols Daquan. 　　How do speci

By specifying shortcut keys for commonly used symbols in a Word 2010 document, users can enter common symbols directly from the keyboard. The shortcut key here refers to the key combination of CTRL or ALT with one or more letters and symbols. The steps for specifying shortcut keys for common symbols in Word 2010 are as

Undefined Symbols for architecture i386: _objc_class_$_XXX", referenced From:errorThis means that you cannot find a name namedXXXclass, which in turn results in an error that cannot be connected, as long as it is resolved.since there is no such class, we need to add this classThe first step:Select project file to find targetsStep Two:Select Build PhasesStep Three:Select Compile SourcesFourth Step:Add the XXX.M Class (remember, add a. m file)It may the

Some of the most common causes are:1 build without the frameworkFor example, there's a piece of code I used OpenGL to introduce a header file#import Build, compile stage no problem, but link error undefined symbols for architecture xxx (here XXX may be armv7s,armv7 or arm64, depending on the configuration, will say later). The workaround is to add the opengles.framework to the build phases link Binary with libraries, and then compile on the OK2 Engine

From: http://blog.csdn.net/kongbu0622/article/details/3478945 From http://bbs.bathome.cn/viewthread.php? Tid = 2516 When we query the help information of a command in the CMD window, the help information is displayed in the command line window. After the command line window is closed, the help information is invisible, if you want to see it again next time, you have to enter the query command in the command line window, which is cumbersome. Is there a way to save the help information displayed

Shell script Learning (III): Shell functions and some common symbols and commands I. Shell functions Like C, Shell functions encapsulate commands and statements that have fixed functions and are usually used repeatedly in a single function, if you want to use this function, you can call this function directly. 1. Function Definition: (1) function_name(){Command 1...Command n} (2) Function function_name(){Command 1...Command n} 2. There are two

When vsftpd is compiled, the error message "cocould not read symbols: file in wrong format" appears, and the related information is searched for because a vsftpd installation file does not take the location of the 64-bit platform library file into account. If the system is a 64-bit platform, the solution is as follows: Edit vsf_findlibs.sh in the source code installation directory and replace lib with lib64. The quick Vim replacement command is:

========================================================== ====Author: yuanlulu Http://blog.csdn.net/yuanlulu No copyright, but please keep this statement for reprinting========================================================== ==== I wrote a driver. It took a long time to get it done because it was dependent on the symbol exported by another module. Let's summarize my practices. For ease of expression, I call the depended module Module B, and my own module is module. Step 1: Export the

PHP Conversion HTML Special symbols I wrote the function Convert some special characters function format_html ($STR) { $str = Str_replace (' "', '" ', $str); $str = Str_replace (' "', '" ', $str); $str = str_replace (' • ', ' • ', $str); $str = Str_replace (' ', ' ', $str); $str = Str_replace (' ', ' ', $str); $str = Str_replace (' ... ', ' ... ', $str); $str = Str_replace ('-', '-', $str); return $str; } But these

has k Positive probabilities: Some mathematical symbols Do not confuse data with computer programming symbols. For example, in the flip die example, the probability of 2 or 4 points is calculated as: P (2 then 4) = P (2) + P (4 ), this is the Union symbol, which is equivalent to "or", and the intersection symbol is "and", which is different in Chinese and English. Another example is flip 2 dice, which add

1. geometric symbols⊥ ∥ ∠ ⊙ △ △° | A | ⊥ ∽ ∠ ∟ ‖|... ω (2) (3) [] α β Gamma2. Algebraic symbols Raquo; ∞ limit ~ Limit ≤ or greater than 1/16 ≈ ∞: [] 『』]【〖3. Operator number×÷ √ ± =≡ ≮ ≯4. Collection symbolsA packet sent between B, diameter, and Oslash; then?5. Special symbolsΣ π (circumference rate) @ # ☆★○ ●◎ ◇ ◆ □■ ▓ ※￥ ε △Λ %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%6. inference sy

When refreshing the class library egorefreshtableheaderview from the drop-down menu, add the resource file to the project, but forget to assume that the quartzcore. Framework framework causes a compilation error: Undefined symbols for architecture i386: "_ Catransform3dmakerotation", referenced from: -[Egorefreshtableheaderview setstate:] In EGORefreshTableHeaderView-6F75314CE1079327.o "_ Objc_class _ $ _ calayer", referenced from: Objc-c

Label: Style Color ar SP Problem C on R LineThe breakpoint set in vs2013 is invalid: "No breakpoint is hit currently, and no symbols have been loaded for this document ". The problem is that debugging information is not generated. The solution is as follows:(1) Project-> property-> Configuration property-> C/C ++-> General-> debugging information format, which cannot be disabled here ".(2) Project-> property-> Configuration property-> linker-> debuggi

English Reading of symbols 'Exclim' = '! ''At' = '@''Numbersign' = '#''Dollar '=' $''Percent '=' %''Caret '=' ^''Ampersand' = '''Asterisk' = '*''Parenleft' = '(''Parright' = ')''Minus' = '-''Underscore '= '_''Equal' =''Plus '=' +''Bracketleft' = '[''Braceleft '= '{''Bracketright' = ']''Braceright '= '}''Semi colon' = ';''Colon' = ':''Quote' = ''''Doublequote' = '"''Backquote' = ''''Tilde' = '~ ''Background' = '\''Bar' = '|''Comm' = ',''Less '=' 'Perio

A simple loading effect. Four symbols (-, \, |,/) are used to simulate a continuously rotating dashboard, prompting the user that the current loading is in progress, this is what arclive shows when establishing connections for players. The effect is as follows: Loading ...\ JavaScript code:View Source print? 01 To avoid possible blocking of browser threads, setTimeout is used instead of setinterval. It reminds us of the kind of QBAS

Error LNK2019: external symbols that cannot be parsed, errorlnk2019 1. It may be the character encoding format of the source file. 2. below Error LNK2019: External symbols that cannot be parsed This problem is easy to encounter. Now let me explain how to solve it. Cause: 1 The declared function is not implemented. Example: Class { Public: A (); }; If the constructor is not implemented, An error occu

The following is a detailed summary of the description and function of various operational symbols in C #first, []square brackets ([]) are used for arrays, indexers, and properties, and also for pointers.1, the array type is a type followed by []:int[] fib = new int[100]; Create an array with 100 elementsTo access an element of an array, enclose the index of the desired element in square brackets:Fib[0] = fib[1] = 1;for (int i=2; i2. Array index opera

The situation where this error occurs:Compile the program with Iphone5 Simulator Normal, with iphone5s above the simulator appears undefined symbols for architecture x86_64: Error and ld:warning:ld:warning:ignoring F Ile warning, using real machine compile normal ...Find a lot of solutions on the Internet have no way to solve. It's all about changing some of the relevant settings for Bulid setting. Then all the wood have what egg with ...Here is my wo

Yesterday the project is also good, today a compilation unexpectedly error:Undefined symbols forArchitecture i386:"_kccategorysentence", referenced from: ___58-[evasettingcontroller tableview:didselectrowatindexpath:]_block_invoke_2inchEVASETTINGCONTROLLER.O-[xfparams SetDefault]inchXFPARAMS.O ___58-[evasettingcontroller tableview:didselectrowatindexpath:]_block_invoke_2inchEVASETTINGCONTROLLER.O-[xfparams SetDefault]inchXFParams.old:symbol (s) not fo

Common Regular matching symbolsAll regular match symbols are defined in the Java.util.regex.Pattern class.1. Character: matches a single characterA: match the letter A\\: Match "\"\t: match the escape character "\ T"\N: Match escape character ' \ n '2. A set of characters: a single character in any match[ABC] : Indicates a possible letter A, letter B, or letter C[^ABC] : Not any one of the letters A,B,C[A-za-z] : Represents any one of the letters[0