= balance-50 where ID =1,lilei balance did not become 350, incredibly is 400, is not very strange, data inconsistency ah, if you think so naïve , in the application, we will use 400-50=350, do not know other session rollback, to solve this problem can take the Read Committed isolation level2, read has been submitted(1) Open a client A, and set the current transaction mode to read committed (uncommitted rea
Inspired by the comments in an alt attribute article of an image yesterday, the author briefly summarized some of the Processing Methods of images on the webpage.
2. automatically zoom out the image
Some images are often large, and the uploaded images will fill the screen. The following example detects the image width. If the image width is greater than "screen width-350 ",
The image will be displayed with the size of "screen width-
time, the encoded data length is about 135.1% of the original length.
To verify the theory, we perform the following tests to encode images of different sizes with Base64, which is consistent with our expectation, up 1/3 from the original data:
Image Size | original size | Base64 size | growth rate |: ----------- |: ------------ |: ------------- |: ------------- | 16*16 | 618 | 824 | 34.2% 24*24 | 1,063 | 1,420 | 33.6% 32*32 | 1,615 | 2,156 | 33.5% 42*42 | 2,510 | 3,348 | 33.4% 48*48 | 2,892 |
Pick up an article (principle)Video Address: http://study.163.com/course/courseLearn.htm?courseId=712011#/learn/video?lessonId=877121courseId= 712011Four, non-apk operation, through the PC side to achieve screenshots operation, and the principleBy means of ADB bridging, the idevice and Androiddebugbridge classes in Ddmlib.jar are called to the devices connected via ADB, which are then saved on the PC side to intercept multiple graphs in a short period of time.Five, ADB bridging mode to achieve t
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) execute the update statement update account set balance = balance-50 where id = 1 on Client A. The balance of lilei is not changed to 350, but it is 400. Isn't it strange, data Consistency is not a question. If you think so, it would be naive. In the application, we will use 400-50 = 350, and we do not know that other sessions are rolled back, to solve this problem, you can use the Read committed isolatio
Ps: Now the Death Knight hopes that you can help him calculate the minimum tip he wants to tip the goblin merchant.
[Plain] # include Int main (){Int I;Int j;Int k;Int n;Int m;Int l;Int num;Int max;Int cost;Int money;Scanf ("% d", num );While (num --){Scanf ("% d", money );N = currency/350;M = money/200;L = money/150;Max = 0;For (I = 0; I {For (j = 0; j {For (k = 0; k {Cost = I * 350 + j * 200 + k * 150;I
Provides various official and user-released code examples. For code reference, you are welcome to learn thinkphp 3.2.2 integrate the Jpgraph plug-in.
Thinkphp 3.2.2 integrates the Jpgraph plug-in.
1. Download a Jpgraph plug-in package from the Jpgraph website.
2. Copy the Jpgraph plug-in package to the Thinkphp/Library/Vendor/Jpgraph folder (the plug-in is usually put in the Thinkphp extension folder)
// Drawing casePublic function draw3D (){Vendor ('jpgraph. char ');$ Chart = new \ Chart; $ Tit
Zhang San at the beginning of the year to recharge the oil card 20000 yuan, known Zhang San every month will refuel 4 times, the cost is 350*4 yuan.Zhang San refueling every 10 times, the petrol station will play once 80 percent, and return to the present 10 percent. Q: Zhang San this card a few times after refueling to recharge again? How much is the oil card balance after each refueling?
Xiao Wang's parents at the beginning of the scho
Today's revised logo came out, spent 200 of the ocean, the girl is also good, very good to speak, the future of the design let her do it,:650) this.width=650; "title=" QQ picture 20141211210356.png "alt=" wkiom1sjlknb-mqlaahd6hucz1k665.jpg "src="/http S3.51cto.com/wyfs02/m00/55/d8/wkiom1sjlknb-mqlaahd6hucz1k665.jpg "/>Yesterday's logo feeling is too broken, and angular more heavy, I like to mellow some, so that the artist output a lot of color and size, in order to apply to a variety of environm
0 milliseconds in the case of large data volumes or small data volumes. However, the query speed for narrowing the range by date segments is no slower than the original query speed.
Clustered index is so important and precious, so I have summarized that clustered index must be built on:
1. The most frequently used field to narrow the query scope;
2. The most frequently used field to be sorted.
Conclusion:
I hope this article will not only help you in your work, but also help you understand the
webmatrix to create a starter site:
Create a new cshtml file named mycharts. cshtml
Delete the automatically generated code and replace it with the following:
@{VaR firstchart = new chart (width: 350, height: 250). Addtitle ("chart test "). Addseries (Name: "teams", charttype: "bar ",Xvalue: New [] {"China", "USA", "Canada", "UK "},Yvalues: New [] {"12", "6", "4", "3 "}). Write ();}
Click Run. The page generated in the browser is as follows:
Cha
[RK_2014_0918] in linux, test the impact of usleep function on CPU usage. rk_2014_0918usleep
1. Local Environment
CPU information Intel (R) Core (TM) i3 cpu m 350 @ 2.27 GHz
Intel(R) Core(TM) i3 CPU M 350 @ 2.27GHz
Intel(R) Core(TM) i3 CPU M 350 @ 2.27GHz
Intel(R) Core(TM) i3 CPU M 350 @ 2.27GHz
Memory Informatio
Product album "is another photo of the product"Add album requirements:Each picture generates three thumbnails {50*50, 350*350, 650*650}1, build table p39_goods_pic{id,pic,sm_pic,mid_pic,big_pic,goods_iddrop tableifexists p39_goods_pic;create table p39_goods_pic (id mediumint unsigned notNULLAuto_increment comment ' Id ',pic varchar () notNULL default"Comment ' original image ',sm_pic varchar () notNULL defa
1710: [Usaco2007 open]cheappal cheap palindrome time
limit:5 Sec Memory limit:64 MB submit:645 solved:361 [SUBM It][status][discuss]
DescriptionTo keep track of all the cows, farmer John installed an automatic system on the farm. He gave every cow an electronic grade. When cows walk through this system, the names of the cows will be automatically read into. The electronic name of each cow is a string of a length of M (1 Input* First line: Two numbers separated by a space, N and M.* S
ASP Tutorial: A brief introduction to ASP Session Object
The session object is used to store information, or to change settings for a user meeting. Variables stored in the Session object hold information to a single user and are provided to all Web pages in an application.
Let's look at a simple example.
Response.Write ("Response.Write ("The default LCID for this page:" session.lcid "Response.Write ("The date format for the above LCID is:" Date () "Response.Write ("The Currency fo
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