not exist) sets the value of key to value when and only if key does not existBecause K1 has been set up before, so use setnx set K1 error, set K4 is OK, because there is no K4
Mset key1 value1 key2 value2 ....
Set multiple key values at once, where M stands for more
Mget key1 key2 Key3 ....
Gets the value of multiple keys at once, where M represents the moreMsetnxSet multiple key values at once, when and only if key does not exist, note that if the set of multiple keys are already set, some key
last action used.25, using the number can cross n regions, such as y3x, will copy the cursor to the third x between the area, 3j down 3 lines26, when writing code can use]p paste, so that you can automatically indent the code27. >> Indent All selected code28. 29. GD moves to the definition of the function or variable where the cursor is located30, K in man search for the word cursor31, merge two lines J32. If you do not want to save the file and reopen: e!33. If you want to open a new file: E f
the previous function using.25, use the number can cross n a region, for example y3x , will copy the cursor to the third x area between, 3j moving down the 3 row26, when writing code can use ]p paste, so that you can automatically indent the code27 >> . Indent All selected code28. Indent All selected code29. gd move to the definition of the function or variable where the cursor is located30. K man Search for the word in the cursor31, merging two linesJ32. If you do not want to save the file, a
last action used.25, using the number can cross n regions, such as y3x, will copy the cursor to the third x between the area, 3j down 3 lines26, when writing code can use]p paste, so that you can automatically indent the code27. >> Indent All selected code28. 29. GD moves to the definition of the function or variable where the cursor is located30, K in man search for the word cursor31, merge two lines J32. If you do not want to save the file and reopen: e!33. If you want to open a new file: E f
last action used.25, using the number can cross n regions, such as y3x, will copy the cursor to the third x between the area, 3j down 3 lines26, when writing code can use]p paste, so that you can automatically indent the code27. >> Indent All selected code28. 29. GD moves to the definition of the function or variable where the cursor is located30, K in man search for the word cursor31, merge two lines J32. If you do not want to save the file and reopen: e!33. If you want to open a new file: E f
Keep track of your Linux learning process so that you can keep going1. Schematic analysis:Nled_1, Nled_2, Nled_4, to the low level of the corresponding LED light, high-level corresponding to the LED light off,s3c2440 chip Gpf4-gpf6 corresponds to Nled_1, Nled_2, Nled_4,So the code inside the Operation GPF4-GPF6 can control led light off.2. Know things before writing codeFirst step: Configure GPF0-GPF4 as output functionStep two: Control the GPF0-GPF4 output low level3. Write code1 . Text2 . Glob
using ", such as Copy to W Register," Wyy, or use visual mode V "WY24. Repeat the last action used.25, using the number can cross n regions, such as y3x, will copy the cursor to the third x between the area, 3j down 3 lines26, when writing code can use]p paste, so that you can automatically indent the code27. >> Indent All selected code28. 29. GD moves to the definition of the function or variable where the cursor is located30, K in man search for the word cursor31, merge two lines J32. If you
Topic:Given an array with n objects colored red, white or blue, sort them so, objects of the same color is Adjacen T, with the colors in the order red, white and blue.Here, we'll use the integers 0, 1, and 2 to represent the color red, white, and blue respectively.Note:You is not a suppose to use the library's sort function for this problem.Click to show follow up.Follow up:A rather straight forward solution is a two-pass algorithm using counting sort.First, iterate the array counting number of
, first the display function, and then request background data.
Let's look at the format of the DataGrid displayed from the Easyui reference document, as shown in the following illustration:
As we look down the reference document, we find that the DataGrid space is created by
First: create a DataGrid from existing table elements, and define columns, rows, and data in HTML.
Second: Create a DataGrid control from the
Third: use JavaScript to create the DataGrid control.
We take the t
small groupings in large groupings, small groupings are grouped behind the large group, and so on
Part II
This section mainly explains the use of something similar to "\1"
Reverse reference for grouping matches
Grammar
metacharacters \1~\9 function: Used to represent a reference to a matching character or grouping before
Usage examples
Reference article: [Original]AS3 JS Regular expression Reverse reference (backreference)
The above may be a bit clumsy, here is an example:
Gener
In order to allow Cisco switched remote connections to the security of the account password improved, you can use SSH to connect the terminal, but many factory switches default iOS is not supported by the SSH feature, in order to enable Cisco switches to support SSH, must upgrade with "K9" iOS. The following is the factory Cisco 3750g-24ts default iOS screenshot
3750 switch support SSH requires 12.1 (one) EA1 above version software.
EMI is enhance
the environment.
4. E-commerce Web site High-performance, highly available solutions, LVS load balancing (front-end four-tier load balancer).
5. The key point explanation of the construction process, the key step explanation.
6. This program has been used in practical production applications for many times, and can be flexibly applied.
Second, the software load balance common several scenarios:
1.lvs+keepalived load Balancing, lvs+keepalived is a four-tier load balancing software under Lin
first step to the new MATLAB path. Select the "Set path" option under the "File" menu bar of the MATLAB main window, then click the "Add Folder" button to add the new path, then save it and exit (Close). (G-\2 R3 K!) M9 S1 z% V4 Z9 X
4. To display a custom module library, you also need to copy the SLBLOCKS.M function to the new path. In the command window of MATLAB, enter:, J! o* d# @5 L8 \
>> which (' slblocks.m ', '-all ')
>> open (' D rogram filesmatlabr2011btoolboxsimulink Simulink blockssl
In this article, the article next morning, on the Cisco AIR-SAP1602I-C-K9 this AP in the state of the FAT AP configured to surf the Internet in a step-up experiment. The configuration is divided into two parts, the first part can be configured in the CLI state of a management IP, the role of the IP is to manage, and LAN is not the same network segment, but also in the same network segment, it does not affect users to surf the internet, but if not the
understand the principle of the KMP algorithm, then the next step is the implementation of the program, the most important thing is how to match the template string to find the corresponding maximum length of the same prefix for each bit. Code:1 void makenext (const char p[],int next[])2 {3 int q,k;//q: template string subscript; k: Maximum prefix length4 int m = strlen (P);//Template string length5 Next[0] = The maximum prefix length of the first character of a 0;//template string is 06 for (q
mail table, msysop, mdrangon ia "3A) 4W: User message Table, wsysop, wdrangon mpx9 @ 4pk>A: Layout Index Table, aLinux, acampus e \ 7*9 ~}?B: layout article table, blinux, bcampus '{bfIHzC: Special classification layout table, cnewboard _ cY (_I: base index table, ilinux, ilinux01, icampus, icampus04 g @ jk 'lJ: Excellent article table, jlinux, jcampus, k9 O5S ~ ^ U(I? C5 * YuIn addition, are strings or numbers used as identifiers? For example, an ac
, unable to find the result in the range, then can convert the thought, find out the result of 1~b minus 1~a-1, is not the answer?Set Len to indicate number of digits, T[i] represents the number of the I-bitFirst, the ANS plus the 1~len-1 bit situationThen ans plus the highest digit number for the 1~t[len]-1 caseThen and so on, coupled with the situation of the second highest 1~t[len-1]-1, coupled with the situation of the next highest bit 1~t[len-2]-1 ...1#include 2#include 3#include 4#include
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