business analysis tools list

About the data structures used in the kernel this series will have five articles, Introduced separately Linked list Queue Hash Mapping Red and black Treesfirst, the introduction of the core linked list The linked list defined in the kernel is a two-way list, in the previous article--libevent source code

this page, the Nginx Web server is successfully installed and working. Further configuration is required.For online documentation and the refer to nginx.org.Commercial support was available at nginx.com.Thank for using Nginx.2.5 Write the Systemtap script Nginx.systemtap, which reads as follows:Global S;Global quit=0;Probe Timer.profile {if (pid () = = Target ()) {if (quit) {foreach (i in s) {Print_ustack (i);printf ("\t%d\n", @count (S[i]));}Exit ();}else {S[ubacktrace ()] }}}Probe TIMER.S (20

;linkedlist,add (e e), because of the existence of node last, O (1), add (int, E), need to traverse the depth of int first, In fact, the increment is the process of re-assignment, not the process of traversal, but also O (1), but actually a round down, also reduced to O (n);Delete: Arraylist,o (n), need to system.arraycopy;linkedlist, only see Delete, O (1), but in any case can not ignore the performance of the search consumption, and eventually reduced to O (n);Change: ArrayList, specify the po

Yesterday in the "Analysis of Jingdong Mall product List page of the user experience and marketing means (a)" I said the product screening this piece, Continue today! If the average filter is not as accurate as the user needs, it also prepares the advanced filter for the user to choose, of course this feature most users do not need, because many of these parameters are not understood, and many para

graduates not only need lofty ideals, but also have passion, mobility, leadership, business credit, and strong adaptability, graduates are still lacking in mind, market vision, and leadership. People who want to start a business do not have to rush for a moment. They enter a good company, accumulate rich experience and contacts, and resign and start a business m

not a screenshot, interested friends can go to understand. 　　 For goods that are not goods, nor do not sell, you can also choose to subscribe to the arrival notice, there are goods Jingdong will send an e-mail to your mailbox, the need for a product and Jingdong but no goods users very convenient. Of course, in my opinion, this is a bit superfluous, Jing Dong does not represent others also did not, want my words will certainly choose other place to buy, hehe, personal opinion, do n

detail. Second Life development package provided, the price of 198 yuan/set (including postage). includes the following contents: 1. "Second Life source Analysis" PDF document. 2. Second Life client source program. 3. 2G U disk, mainly used to copy source programs and related development tools. provide three months of technical services, provides quick compilation instructions, such as r

The original business process platform approval sheet uses the idea of horizontal table vertical storage, where the data for the business forms used by all processes exists in a physical table, and each data record in the table contains the field information for the column definition and value,column, defined by the definition table. This approach is implemented, it is necessary to use code for data assembl

; } if(Nodeclick! =NULL E.button = =mousebuttons.left) {intNTag = (int) Nodeclick.tag; if(NTag = =0) return; This. Treeviewtask.selectednode =Nodeclick; Loadinfobynode (); } showcontent ( This. TreeViewTask.SelectedNode.Text); }In the tree node of the mouse double-click processing function, call the second step above the Showcontent function, pop up the corresponding tab form.For more detailed code, please download the study yourself.Song BoSource: http: