to select the Gl_modelview matrix, you can:Glmatrixmode (Gl_modelview);--------------------------------------------------------------------------------------------------------------- ------------------------------Model-view Matrix (Gl_modelview)The Gl_modelview matrix contains the view matrix and the model matrix in a matrix, in order to transform view (camera), you need to put the entireThe scene is applied inverse transformation. Glulookat () is used to set the viewing transform.The rightmost
have by 2. When multiplied by 2, a number of results are obtained that are less than or equal to M. Because it is generated sequentially, less than or equal to M must already be in the array, we do not need to consider again, we will also get a number of results greater than m, but we only need the first result greater than M, because we want the ugly number is generated in order from small to large, other larger results later. We put the result of the first multiplied by 2 to M2. Similarly, we
")>Head (MPG) manufacturer model DISPL Year CYL Trans DRV Cty1 Audi A4 1.8 1999 4 Auto (L5) F 182 Audi A4 1.8 1999 4 Manual (M5) F 213 Audi A4 2.0 4 Manual (M6) F 204 Audi A4 2.0 4 Auto (AV) f 215 Audi A4 2.8 1 999 6 Auto (L5) F 166 Audi A4 2.8 1999 6 Manual (M5) F 18Hwy FLclass1 29P Compact2 29P Compact3 31P Compact4 30P Compact5 26P Compact6 26P Compact> P factor (year)))>Summary (P) Data:manufacturer, mo
Currently want to do a mobile version of the mall, in the design of the database encountered the problem:
such as a dress, this dress has red, white, blue,Red and x,xl,xll size,White with S,M,X,XLBlue with M,X,XL
For their own design of the database has been not very satisfied, look at the way the great God, enlighten.
The extension of the problem of the general shopping malls can not only sell clothes, there will be electronic products, such as a messy post-expansion of how to do?
Reply con
Current page-for example, if the current page is a homepage, the color of the homepage on the navigation bar is different from that of other topics, which is used to give a clear indication to the viewer.
Next, let's take a look at the specific practice. The basic implementation of a menu is not much different from that of a General CSS menu. We will focus on how to implement the current page.
Set Menu has five columns: home, about, products, services, contact, respectively for each column an
Original article: http://blog.sina.com.cn/s/blog_4a0a39c30100auh6.html
The android SDK is always upgraded, M3-> M5-> 0.9->1.0. The most important thing is that TMD is somewhatCodeNot compatible yet. You have to review apidemos and follow the demo to change it.
Originally androidgl (http://code.google.com/p/android-gl/) with M3, M5 version of the SDK shows that the model is good, and recently upgraded,
don't need to consider them again; we will get several results larger than M, but we only need the first result larger than M, because we want the ugly number to be generated in ascending order, and we will discuss other larger results later. The result of multiplying the first one by 2 with a value greater than M is marked as M2. Similarly, we multiply every ugly number by 3 and 5 to get the first result M3 and M5 larger than M. The next ugly number
Current page--for example, now the page is the homepage, then the first page of the navigation bar color and other columns are different, to give visitors a clear indication.Below the specific approach, the basic menu implementation and the general CSS menu is not much different, focusing on how to implement the current page.Set up a menu of 5 columns: Home, about, products, services, contacts, respectively, to each column a id,m1-m5,css can be writte
1) data input and outputWOW (): View the parameters of the Weka function.Weka_control (): Sets the parameters of the Weka function.Read.arff (): reads the data weka attribute-relation File format (ARFF).Write.arff: Writes data to Weka attribute-relation file format (ARFF).2) Data preprocessingNormalize (): Unsupervised standardized continuity data.Discretize (): With MDL (Minimum Description Length) method, there is supervised discretization of continuous numerical data.3) Classification and reg
function does not match the parameter type. For example, a function that is used to calculate the number of occurrences of a character in a string:Returns the number of times that CH appears in STR size_t countchar (const string STR, char ch); Char Buffer[max_string_len];char C; Read into a character and string, use setw//to avoid cache overflow, when reading a string cin >> C >> setw (Max_string_len) >> buffer; cout Take a look at the Countchar call. The first passed argument is a character ar
accessed directly by the externalIf we want to be able to access variables defined in another module in one module, you can
Use variables as a property of the global object, but this does not recommend
Using Module object modules
To use a variable as a property of a global objectglobal.a=100;Using Module object modulesModule: Saves some information about the current module that can be provided byConsole.log (module)To see what properties are availableIn this module object, ano
Timestamp, random number generation, Random Number Generation
Static void Main (string [] args){String s = getTimestamp ();String ss = getNoncestr ();Console. WriteLine (ss );Console. WriteLine (s );Console. ReadKey ();}
========================================================== ========================================================== ==========/// ========================================================== ==========
Public static string getNoncestr (){Random random = new Random ();Return MD5U
= "insert into test (ID, name, sex) values (% s, % s, % s) "# Write down the SQL statement and use the formatting method to pass in variable values. Note that % sm1 = (1, 'aaa', 'F') is used no matter what data type ') m2 = (2, 'bbb ', 'M') m3 = (3, 'ccc', 'M') m4 = (4, 'ddd ', 'F ') m5 = (5, 'eee', 'm'{cur.exe cute.pdf (sqlim, [m1, m2, m3, m4, m5]) # Run the five values and SQL commands in the list using
structure of tree.2. Map2.1. Map: maintain the relevance of the key-value so that you can use the key to find the value.1) KeySet () and values () Functions
ImportJava. util .*;
PublicClassExplicitStatic {
PublicStaticVoidPrintKeys (MapM ){
System. Out. print ("Size =" + m. size ());
System. Out. println (", Keys:" + m. keySet ());
}
PublicStaticVoidPrintValues (MapM ){
System. Out. println ("Values:" + m. values ());
}
PublicStaticVoidTest (MapM ){
For(IntI = 1; I
M. put ("km"
XML, and there is a DOM XML parser in Android.
3. the file network does not change much in Android, just like in the case of j2's. Users can directly call the I/O interface in j2's to complete the corresponding work, which is satisfactory, what will happen in the future? It is hard to say at present, because Android has added a new network transmission class. It can be seen that it is under development, and the latest M5 SDK is not perfect yet.
4. me
JS display current dateCopy codeThe Code is as follows:The effect is as follows:The corresponding JS is as follows:Copy codeThe Code is as follows:// Create an array to store the number of days per monthFunction montharr (m0, m1, m2, m3, m4, m5, m6, m7, m8, m9, m10, m11 ){This [0] = m0;This [1] = m1;This [2] = m2;This [3] = m3;This [4] = m4;This [5] = m5;This [6] = m6;This [7] = m7;This [8] = m8;This [9] =
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