Scala classes are similar to Java classes. A simple example is as follows:
class MyClass { var myField : Int = 0; def this(value : Int) = { this(); this.myField = value; } def getMyField() : Int = { return this.myField; } def addToMyField(value : Int) { this.myField += value; }}
If you are curious, you can decompile the compiled code into Java code:
import scala.reflect.ScalaSignature;@ScalaSignature(bytes="\
: Myproj.exe!wwinmain (hinstance__ * hinstance=0x00400000, hinstance__ * hprevinstance=0x00000000, wchar_t * lpcmdline=0x000208e0, int ncmdshow=0x00000001) line + C + +#002: Myproj.exe!__tmaincrtstartup () line 589 + 0x35 bytes C#001: Myproj.exe!wwinmaincrtstartup () line 414 C#000: [email protected] () + 0x23 bytesWe can see that the process first calls the BaseProcessStart function in Kernel32.dll, then calls the Startup Code of the function wWinMainCRTStartup, and then calls the _tmaincrtstar
have the following results:#003: Myproj.exe!wwinmain (hinstance__ * hinstance=0x00400000, hinstance__ * hprevinstance=0x00000000, wchar_t * lpcmdline=0x000208e0, int ncmdshow=0x00000001) line + C + +#002: Myproj.exe!__tmaincrtstartup () line 589 + 0x35 bytes C#001: Myproj.exe!wwinmaincrtstartup () line 414 C#000: [email protected] () + 0x23 bytesWe can see that the process first calls the BaseProcessStart function in Kernel32.dll, then calls the Startup Code of the function wWinMainCRTStartup,
-- Test Data deep sortingDECLARE @ t TABLE (ID char (3), PID char (3), Name nvarchar (10 ))INSERT @ t SELECT '001', NULL, 'shandong province'Union all select '002', '001', 'yantai City'Union all select '004 ', '002', 'zhaoyuan City'Union all select '003 ', '001', 'qingdao'Union all select '005 ', NULL, 'sihui City'Union all select '006 ', '005', 'qingyuan City'Union all select '007 ', '006', 'sub-city'-- Di
section: cold-formed thin-walled steel 2c160x70x20x3.0 back-cross section
Limb back Pitch (mm): 0
Out-of-plane calculation length: 3.000
Strength Calculation net cross-sectional factor: 1.000
Seismic design: No seismic design
Design internal force:
Design values for the x-axis bending moment Mx (KN.M): 5.400
Design value of bending moment around y-axis My (KN.M): 0.000
Shear Design Value V (KN): 8.2800
Component checking:
1. Calculation of section characteristics
Full cross-sectional character
(' 2007-03-08 ', ' yyyy-mm-dd '));--5, retrieving stuinfo tableSql> select * from Stuinfo;650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/4D/7D/wKioL1RR_FLgDNjdAACIeor74xI042.jpg "title=" 1.jpg " alt= "Wkiol1rr_flgdnjdaacieor74xi042.jpg"/>--6, create a score table, including the number of students, course code, scores, which is the foreign key of this tableSql>create TABLE Score (Gnochar (4), Class Int,score number (4,2), CONSTRAINT fk_no FOREIGN KEY (gno) REFERENCES Stuinfo ( SNO));
| xargsDecember_report1_readme a archive.tar mkdirhier. sh~ /Tmp $ ls-1 | xargs fileDecember_Report.pdf: PDF document, version 1.3README: ASCII textA: directoryArchive.tar: POSIX tar archiveMkdirhier. sh: Bourne shell script text executable~ /Tmp $
8. Know when to use grep to count, and when not Example:~ $ Time grep and tmp/a/longfile.txt | wc-l2811
Real 0m0. 097 sUser 0m0. 006 sSys 0m0. 032 s
9. when determining whether a specific domain meets the
When the last time that the received HTTP data was communicated to another thread through the pipeline, it did not send the data directly past, but rather sent the data in the shared memory handle to the past, to achieve efficient communication purposes. The following is an analysis of the resource processing process, what to do after receiving the message. The processing code for this message is as follows:
#001 void Resourcedispatcher::onreceiveddata (int request_id,
#002 Sharedmemoryhandle S
directory, use:
$ Find/etc-name "Host *"-print
To search for files in the $ home directory, you can use:
$ Find ~ -Name "*"-print or find.-Print
To make the system run at a high load, search for all the files from the root directory.
$ Find/-name "*"-print
If you want to find the file name starting with two lower-case letters in the current directory, followed by two numbers, and finally a file named *. txt, the following command can return the file named ax37.txt:
$ Find.-Name "commana-z?a-
square or 2-order polynomial. According to this, the n + 1 data point uniquely determines the n-order polynomial. Therefore, in the above case, there are 11 data points. We can choose a polynomial of up to 10th order. However, high-order polynomials provide poor numerical characteristics, and we should not choose polynomials that are higher than the desired order. In addition, as the polynomial order increases, the approximation is not smooth enough, because higher subpolynomials are before zer
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