iterations and threads is only simulated concurrency, in order to simulate the simultaneous operation at a certain time to set more. Although different threads are open, they appear to be created sequentially.This is the lock resource situation that is viewed at a moment, such asonly now spid=199 The session is getting the document number, using a range lock rangx_x and an intent exclusive lock on the table (only the query cannot be changed), while the other threads are querying the document nu
this point tx2 whether to reopen a transaction or put it in a TX1 transactionWhen placed on a transaction TX1 run: That is, the Propagation property (propagation=required) of the transaction, the running process is as follows:REQUIRED: Running within an existing transaction, committing togetherSo at this time the customer can not buy a book, because the transaction TX2, TX3 and transaction tx1 together to submitWhen a transaction is reopened: that is, the Propagation property (propagation=requi
In this tutorial, we use Photoshop to deal with the photo deceitful Act to achieve fast character-changing.
1. Randomly find two photos, preferably face angle to the same, the following figure:
2. Using the selection tool, select and then copy the face to the right, and then attach to the photo on the left, as shown below:
3. Select "Windows">"Layer" to open the level version of the layers, adjust the transparency of the lay
10.30.70.2 10.30.70.100
Two IP addresses are reserved, that is, these two IP addresses are not automatically allocated through DHCP. In this case, the server retains the two IP addresses, which are implemented by the above command.
IP DHCP Ping packets 3
Before assigning an IP address, ping the address, that is, after assigning to a computer IP address to test connectivity, if connectivity is not a problem, the IP address is completely allocated to the corresponding computer, the use of this
1, the two ready to open the photos at the same time
The photo opens at the same time
2, with rectangular marquee tool, select one of the head, drag it to another picture above
Marquee Tool Drag
3. Set the opacity of
A professor wants to go to a domestic situation policy class, ask the student Xiao Lin to prepare a concise courseware for him. Kobayashi in the production process, found that Professor teaching materials, the first level of the title is
This tutorial introduces a more commonly used synthesis method, which synthesizes the portrait into the physical. Here is the choice of ancient trees, in fact, the other kind of operation of the process is similar. General process: Find the
This method may have been heard by many people, including me, some people also try to use it, but still feel good, but now it seems that the idea is wrong. Explain it again. These symbols can be used at the same time, in order to first m_, (this tag
Lunar August 15 is China's traditional mid-autumn festival, but also China's second largest traditional festival after the Spring Festival. Mid-Autumn night, Moonlight Bright, the legendary Chang ' E is always haunting people's heart. Today, cattle
1. First determine the disk of U disk, you can plug in your own USB disk, and then you can see the letter, this step is very important, if the letter is wrong, then let your computer sleep;
2. Create a file on the U disk, file name and extension
Effect chart.
OK, let's take a look at the production tutorial here.
1, open the material shown in Figure 1, choose the Elliptical Marquee tool to select the person's face frame, press CTRL + C to copy
3, in
After you leave your dorm and office, you may be worried about whether your computer has been moved by someone else, and you may not be able to find out why the computer shuts down slowly.
If there is no special installation of control, monitoring
Before Running eclipse to execute the Android Application, there was a problem today and the Console reported an error:
The connection to ADB is down, and a severe error has occured.You must restart ADB and eclipse.Please ensure that ADB is
Git uses Vim as the default editor, but this editor is always unavailable, so it is intended to replace it with sublime_text.
Use Windows Default notepad
git config --global core.editor notepad
Sublime_text is a little more troublesome.
1. Add the
I don't know how to classify them.
The number of subtree nodes in a tree with a certain node as the root, and the maximum number of subtree nodes in the son node with the son node as the root, recursively obtain n [I], number of subtree nodes with I
Http://poj.org/problem? Id = 1655
Same as poj3107, only one vertex with the smallest value must be output.
The num [] record of the initial answer value is guilty...
Code:
# Include
# Include
# Define max (A, B) A> B? A: B
Using namespace
Note []: The Law of violence is indeed very slow. The example here uses the machine on hand to run an average of 30 s.
Wuzy in the garden translated a foreign article about how to solve the number of independence in the tutorial is much faster:
Http:
B. exactly match the center of gravity of the tree: Find a vertex, and the largest subtree node in all its Subtrees is the least.
The Code is as follows:
# Include # include # include # include # include # define maxn 20000 using namespace STD;
#include #include #include #include using namespace std;#define N 20010int s[N], f[N], n, root;vector g[N];void getroot(int now, int fa) { int u; s[now] = 1; f[now] = 0; for (int i=0; i
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