accurate protractor

* * Calculates the time interval, accurate to seconds, and returns a string/public string caculateduration (date begindate, date EndDate) { Long Begindatelong = Begindate.gettime (); The date type converts to a long number of milliseconds, used to compute long Enddatelong = Enddate.gettime (); Long Durationlong = Enddatelong-begindatelong; Long totalseconds = durationlong/1000;//Total number of seconds long secondsofday = 24 * 60 * 60;//The number

The example in this article describes the way in which PHP calculates age-accurate to year-month dates. Share to everyone for your reference. as follows: Hopefully this article will help you learn about PHP programming.

nature of slowly guide customer understanding can facilitate the planning of the cycle. V. The difficulty of competition in the industry Why to finally say the difficulty of competition in the industry, because in the small part, since you choose the site optimization of the job, then your heart what kind of list already have "small 99". Can not be blind to join the site to optimize the industry to come. So the difficulty of the industry to grasp the difficulties themselves, to the best of th

us to be able to make a more accurate positioning of their website, such as "weight loss," the term, its flow is very large, but also accompanied by a considerable conversion rate of products, just any new webmaster in the absence of great resources is obviously impossible to do up the word. This situation is a bit ambitious, the target keyword profit is high but the rankings do not go up, and finally there is no profit. and "The best Hundred years o

Web sites generally have access statistics tools, the more efficient and practical tools are diverse and very accurate. Practical JavaScript can also be simple to implement this function, although not commonly used on the network of precision, but did implement a certain function, the following is a code example, interested friends can refer to: Hopefully this article will help you learn about JavaScript programming.

Java known two locations latitude and longitude distance (very accurate) Package com.lbnet.lzx.util; public class GoogleMap {Private static final Double Earth_radius = 6378.137;private static Double rad (double D){return d * math.pi/180.0;}/*** ????}????????????? /γ???* @param LAT1* @param lng1* @param lat2* @param lng2* @return*/public static double Getdistance (double lat1, double lng1, double lat2, double lng2){Double RADLAT1 = rad (LAT1);Double

Apple, the German is called Di Li, the American is called the Irish Yambean, the Russian is called the Dutch potato. If we sell potatoes, can we classify the users according to different terms? 1. When we use the potato as the key word, what kind of customer group are we? Do they like to eat potatoes, do we need to spend a lot of energy to do optimization? Can you assign them to that potential customer group? 2. When we use potato as the key word, what kind of customer group are we? What are

CREATE TABLE ' Tab1 ' (' tab1_id ' VARCHAR (one) DEFAULT NULL,' Create ' TIMESTAMP (3) null DEFAULT NULL,' Create2 ' DATETIME (3) DEFAULT NULL) Engine=innodb DEFAULT Charset=utf8SELECT * from TAB1;TIMESTAMP (3) with DATETIME (3) means retention 3 is the number of millisecondsTIMESTAMP (6) with DATETIME (6) means retention 6 is the number of millisecondsExample of modifying a table field that already exists: ALTER table tb_financial MODIFY create_time DATETIME (3) DEFAULT NULL COMMENT ' input tim

CREATE TABLE ' Tab1 ' (' tab1_id ' VARCHAR (one) DEFAULT NULL,' Create ' TIMESTAMP (3) null DEFAULT NULL,' Create2 ' DATETIME (3) DEFAULT NULL) Engine=innodb DEFAULT Charset=utf8SELECT * from TAB1;TIMESTAMP (3) with DATETIME (3) means retention 3 is the number of millisecondsTIMESTAMP (6) with DATETIME (6) means retention 6 is the number of millisecondsExample of modifying a table field that already exists: ALTER table tb_financial MODIFY create_time DATETIME (3) DEFAULT NULL COMMENT ' input tim

Label:Just done, no two fields are needed. mysql5.6.4 later versions, support defining a field such as time (3) or timestamp (6), and then using Current_timestamp (6), you can assign a value with a millisecond or microsecond value to the field! posted on 2015-08-27 I'm also studying the problem. All seem to be two fields to implement.http://www.zhihu.com/question/20859370The general search is to use two fields to achieve, this is known to say 5.6.4 after the can.In fact, you can also use a strin

More correct asp Bubble sorting the code found on the Internet. Function Sort (ary) Dim KeepChecking, I, FirstValue, SecondValue KeepChecking = TRUE Do Until KeepChecking = FALSE KeepChecking = FALSE For I = 0 to UBound (ary) If I = UBound (ary)

Case:Id name Course name score1 Zhang San math 692 Li Si math 893 Zhang San, mathematics 69Delete redundant student information that is identical except for automatic numbers Bytes ---------------------------------------------------------------------

When I used the new SQL Server2005 function to construct the paging storage process, I mentioned using the ROW_NUMBER () function to replace top to implement the paging storage process.However, after a long time, we found a new problem, that is,

This method is supported in SQL Server or oracle, but mysql does not currently support it. A similar error is reported: Youcan This method is supported in SQL Server or oracle, but mysql does not currently support it. An error similar to: You can

Gettickcount returns the number of milliseconds that have elapsed since the operating system was started (elapsed). The returned value is DWORD. For example, DWORD time; Time = gettickcount (); HoweverGettickcount: it returns the number of

I just learned Asp.net and made a query. I can check it, but I don't know if the method is correct. The first exact query for sunbathing: Private void page_load (Object sender, system. eventargs E) { // Place user code here to initialize the page  

JS Regular Expression -- non-negative integer or decimal number [the maximum number of decimals is accurate to two digits after the decimal point]

There are many articles about the loss of floating point computing accuracy, so I will not talk about it. I searched an article for details. Refer to reference 1. The settings are as follows: A large number can be set with two parameters:

As more and more vendors start to promote "channel guarantee", many installers find that they need to provide channel test results.Channel testing configuration is an important indicator used by the design and users of the cabling system to verify

Copy CodeThe code is as follows: /** * A function of converting a digital amount into a Chinese capital amount *string Int $num lowercase number or lowercase string to convert *return Capital Letters * Decimal place is two digits **/ function