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: function (doc) {doc. count = doc. num; delete doc. num ;} }); Db. runCommand ({group: { Ns: "test ", $ Keyf: function (doc) {return {age: doc. age };}, Initial: {num: 0 }, $ Reduce: function (doc, prev ){ Prev. num ++ }, Finalize: function (doc) {doc. count = doc. num; delete doc. num ;} } }); MapReduce // Insert test data first For (var I = 1; I { Db. test. insert ({_ id: I, name: 'mm' + I }); } // Mapreduce Db. runCommand ( { Mapreduce: 'test ', Map: function () {emit (this. name. sub

-24 (%RBP),%raxmovq%rax, 8 (%RDX), init pymovq-8 (%RBP),%rdxmovq-32 (%RBP),%r Axmovq%rax,%RDX; init pzpopq%rbp; recover rbpret_z8distancerk8positions1_:;d istancepushq%rbpmovq%rsp,%rbpsubq$ %RSP, Extend Stack Movq%rdi, -8 (%RBP), get address of Xmovq%rsi, -16 (%RBP), get address of ymovq-8 (%RBP),%raxmovsd (%r AX),%xmm1; get X.pxmovq-8 (%RBP),%raxmovsd (%rax),%xmm0; get x.pxmulsd%xmm0,%xmm1;%xmm1 = x.px * X.PXMOVQ-8 (%RBP),%rax Movsd8 (%rax),%xmm2movq-8 (%RBP),%raxmovsd8 (%rax),%xmm0mulsd%xmm2,%

CSS directionBasically, you just care about the following two attribute values:direction:ltr; Default value Direction:rtl;Among them, ltr is the initial value, represents Left-to-right, is from left to right meaning, and then specifically described below, is the inline content is from left to right in order to arrange, we usually web page processing is such, for example, before and after two pictures, by default, the DOM in front of the display on the left.rtlis another value, right-to-left a

make the relevant JS interaction according to content.if (content = = = "Narrow Screen") { // ... Else if (content = = = "Pu") { // ... Else if (content = = = "Widescreen") { // ...}Instance:DOCTYPE HTML Public "-//W3C//DTD XHTML 1.0 transitional//en" "http://www.w3.org/TR/xhtml1/DTD/ Xhtml1-transitional.dtd ">HTMLxmlns= "http://www.w3.org/1999/xhtml">Head>Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8" />title>_ Pseudo-Class +JS realization CSS3 Media queries cros

, the other changes accordingly: m := make(map[string]string)m["Hello"] = "Bonjour"m1 := mm1["Hello"] = "Salut" // 现在m["hello"]的值已经是Salut了 Make, new operation makeMemory allocations for built-in types ( map , slice and channel ). newused for various types of memory allocations. Make The built-in function new is essentially the same as a function function in other languages: the memory space of a type that is new(T) populated with 0 values is allocat

, before and after two pictures, by default, the DOM in front of the display on the left. RTL is another value, right-to-left abbreviation, that is, from right to left meaning, and then specifically described below, that is, inline content is from right to left to arrange, add the application of this CSS declaration, then the front and back two pictures, by default, the DOM in front of the display on the right side, but also in the right side of the container. For example,

In front, we played HTTP, quite a bit of meaning, in this article, we continue to play FTP (File Transfer Protocol). Both HTTP and FTP are application-layer protocols built on TCP, no matter how they are packaged, how they are loaded bigger, and ultimately TCP end-to-end transmission. This paper is divided into two parts: first. Use Wireshark to capture the content of FTP client GG and FTP server mm. Two. Use C code to briefly simulate the FTP client that implements Windows.Description, the expe

-128];... and one in the previous lineSub ecx, 16; 16 QWORDS = 2 64-byte cache linesDec eaxJnz. prefetchloop Mov eax, CACHEBLOCK/8 . Writeloop:Prefetchnta [esi + ecx * 8 + 512]; fetch ahead by 512 bytes Movq mm0, qword [esi + ecx * 8]Movq mm1, qword [esi + ecx * 8 + 8]Movq mm2, qword [esi + ecx * 8 + 16]Movq mm3, qword [esi + ecx * 8 + 24]Movq mm4, qword [esi + ecx * 8 + 32]Movq mm5, qword [esi + ecx * 8 + 40]Movq mm6, qword [esi + ecx * 8 + 48]Mov

[string]float32 {"C": 5, "Go": 4.5, "Python": 4.5, "C + +": 2}//Map has two return values, second return value, if no key exists, then OK is false If OK is truecsharprating, OK: = rating["C #"]if OK {fmt. Println ("C # is in the map and it rating is", csharprating)} else {fmt. Println ("We have no rating associated with C # in the map")}delete (rating, "C")//Remove key for C element As mentioned above, map is also a reference type, and if two maps point to one level at a time, then one change

Common commands for linux system information retrieval 1. disk information [wang @ localhost desktop] $ du-sh. /mm392K. /mm [wang @ localhost desktop] $ du-ak. /mm376./mm/boot_nontrust.bin4. /mm/bt. sh0./mm/check. md54./mm/rtk8723_bt... common commands for linux system information retrieval 1. disk information [wang @ localhost desktop] $ du-sh. /mm392K. /mm [wang @ localhost desktop] $ du-ak. /mm376. /mm/boot_nontrust.bin4. /mm/bt. sh0. /mm/check. md54. /mm/rtk8723_bt_config4. /mm/startup. x392

property) may cause conflicts in the definition of frequency in the module during emulation, and is therefore not advocated. 1. Mobility Model Selection:Mobilityhelper mobility;mobility. Setmobilitymodel ("ns3::constantpositionmobilitymodel");2. Create a building:DoubleX_min =0.0;DoubleX_max =10.0;DoubleY_min =0.0;DoubleY_max =20.0;DoubleZ_min =0.0;DoubleZ_max =10.0; Ptr(); b-setboundaries (Box (X_min, X_max, Y_min, Y_max, Z_min, Z_max)); b-Setbuildingtype (building::residential); b-Setextwalls

The 23 Design Patterns of Java come from http://blog.csdn.net/leshui/archive/2003/11/20/11951.aspx. Design PatternProgramMember's "internal power" is increasingly affected by. netCommunityThis change is very gratifying. the Java Community is ahead of us, but this situation may change one day. Talking about 23 Java design modes from the perspective of mm1. Factory-try to catch up with mm. The chicken wings of McDonald's and the chicken wings of KFC

Test condition: for Windows + MongoDB 1.8.2, insert the test data first: for (var I = 1; I MapReduce // Insert test data first For (var I = 1; I { Db. test. insert ({_ id: I, name: 'mm' + I }); } // MapreduceDb. runCommand ({Mapreduce: 'test ',Map: function () {emit (this. name. substr (0, 3), this );},Reduce: function (key, vals) {return vals [0] ;}, // Note: vals is an Object rather than an arrayOut: 'wq'}); Note:1. mapreduce groups emit functions based on the first parameter called by the

timesPush dpl to protect the first address of the data blockPUSH DPHMM1: inc dptr; point to a new dataMovx a, @ DPTR; read this dataMov B, A; saveSetb c; comparison with the maximum valueSubb a, R6JC MM2; the current maximum value is not exceeded, and the current maximum value is keptMOV R6, B; exceeds the current maximum value, update the maximum storage addressMOV R2, DPH; also update the maximum storage addressMOV R3, DPLSJMP MM3MM2: mov a, B; compared with the minimum valueCLR CSubb a, R7JN

customer connects to the chat room4. The system returns the successful logon information.5. End of use casePrerequisites: you must first know the address of the chatting room server.Post condition: Add a user to a chat roomBackup event stream 14. When the number of connected chat rooms reaches the upper limit, the system returns a message indicating that the chat room is full.Alternate event stream 24. When a user has logged on to a chat room and the user has logged on to the chat room again, t

register St0 0 Floating point register zero ST1 1 Floating point register 1 St2 10 Floating point register 2 St3 11 Floating point register 3 St4 100 Floating point register 4 ST5 101 Floating point register 5 St6 110 Floating point register 6 St7 111 Floating point register 7 Multimedia registers Mm0 0 Media regis

) findViewById (R. id. check_dialog );This. inputBtn = (Button) findViewById (R. id. input_dialog );This. progressBtn = (Button) findViewById (R. id. progress_dialog );}/** Register button to listen to events */Private void initListeners (){This. commonBtn. setOnClickListener (this );This. radioBtn. setOnClickListener (this );This. checkBtn. setOnClickListener (this );This. inputBtn. setOnClickListener (this );This. progressBtn. setOnClickListener (this );}/** Normal dialog box */Private Dialog

of background images and background colors.Compatibility: IE 8 ~ 11 Edge 12 ~ 14 Firefox 41 ~ 47 chrome 45 ~ 51 Safari 7 ~ 9.1CSS3 backgrounds supports multiple backgrounds in IE9 + browsers. Therefore, you need to mix multiple images with commas (,) and write them in the background attribute one by one,. Box {Background: url(mm1.jpg) no-repeat center, url(mm2.jpg) no-repeat center;} Css3 isolation: isolate isolationIn addition to the inherit value t

As a programmer, the design pattern is becoming increasingly popular. the attention of the net community. This change is very gratifying. the Java Community is ahead of us, but this situation may change one day. Talking about 23 Java design modes from the perspective of mm1. Factory-try to catch up with mm. The chicken wings of McDonald's and the chicken wings of KFC are what mm loves. Although the taste is different, whether you take mm to McDonald's

=cw[i].v; TIN[V]--; if(tin[v]==0) {Q.push (v); } } } if(t!=n)return 1; returnans; } Inlinevoidinit () {tot=-1; MM0 (inch); MM1 (head); } intMainintargcChar Const*argv[]) {#ifdef DEBUG freopen ("d:in.in","R", stdin); Freopen ("D:out.out","W", stdout); #endif Charb; while(~SCANF ("%d%d", n,m) (n+m)) {init (); intans=1; for(intI=0; ii) { Chars[5]; scanf ("%s", s); A=s[0];b=s[2]; if(ans==0)Continue; inch[