accurate protractor

God's Web site is not, are some for writing to bring convenience to the website. And as a substitute for some of the most commonly used websites, some of these sites are more accurate and more convenient. God's Web site is not, are some for writing to bring convenience to the website. And as a substitute for some of the most commonly used websites, some of these sites are more accurate and more convenient.

Plus number.prototype.add=function (ARG) {varr1,r2,m; try{r1=this.tostring (). Split (".") [1].length;} catch (e) {r1=0;} try{r2=arg.tostring (). Split (".") [1].length;} catch (e) {r2=0;} m=math.pow (10,math.max (R1,NBSP;R2)); return (this*m+arg*m) /m;};/ / subtraction Number.prototype.sub=function (ARG) {returnthis.add (- ARG);};/ / multiplication Number.prototype.mul=function (ARG) {varm=0 , s1=this.tostring (), s2=arg.tostring (); try{m+ =s1.split (".") [1].length;} catch (E) {}try{m+=s2.sp

Very good calendar Selection control that can be accurate to minutes, so that we can easily select the article modification date, etc. script function CalendarMinute (name, fName) {this. name = name; this. fName = fName | "m_input"; this. timer = null; this. fObj = null; this. toString = function () {var objDate = new Date (); var sMinute_Common = "class = \" m_input \ "maxlength = \" 2 \ "name = \" "+ this. fName + "\" onfocus = \ "" + this. name +

Article Title: precise Command record after a LINUX user logs on. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Main functions: Which ip address and time (accurate to seconds) can be recorded and what commands are made? When a user logs on, redefines the HISTFILE The HISTFILE file name contains the logon user

Javascript countdown (accurate to seconds) and javascript countdown The code is quite simple and practical, so there is not much nonsense here. You can understand it simply by looking at it. The above is all the content of this article. I hope you will like it.

Reprint: http://af8991.iteye.com/blog/1217672New SimpleDateFormat ("Yyyymmddhhmmsssss"). Format (new Date ());Method 2:Calendar Cld = Calendar.getinstance ();int YY = Cld.get (calendar.year);int MM = Cld.get (calendar.month) +1;int DD = Cld.get (calendar.date);int HH = Cld.get (Calendar.hour_of_day);int mm = Cld.get (Calendar.minute);int SS = Cld.get (Calendar.second);int MI = Cld.get (Calendar.millisecond);String curtime = YY + mm + DD + HH + mm + SS + MI;Calendar cal = Calendar.getinstance ();

Java gets the current system time, accurate to several milliseconds, java milliseconds Import java. text. SimpleDateFormat; import java. util. Date; import java. util. Calendar; public class MainProcess {public static void main (String [] args ){//func1Calendar Cld = Calendar. getInstance (); int YY = Cld. get (Calendar. YEAR); int MM = Cld. get (Calendar. MONTH) + 1; int DD = Cld. get (Calendar. DATE); int HH = Cld. get (Calendar. HOUR_OF_DAY); int

of hours acquired is 8 hours, as in C, but this is just the current speculation)What is Kernel32.dll?　　　　Kernel32.dll is a very important 32-bit dynamic link library file in Windows 9x/me, which belongs to the kernel-level file. It controls the system's memory management, data input and output operations, and interrupt handling, and when Windows starts, Kernel32.dll resides in memory-specific write-protected areas, making it impossible for other programs to occupy this area of memory.How to use

in a loop.The setinterval is loop-activated, that is, each time interval is set to trigger the specified code. This is the real timer.SetInterval is simple to use, while settimeout is more flexible, can exit the loop at any time, and can be set to run at an irregular interval, such as the first 1 seconds, the second 2 seconds, the third time 3 seconds ...Reference article:http://heisetoufa.iteye.com/blog/269566Http://www.cnblogs.com/mbtq/archive/2012/10/25/2740023.htmlHttp://blog.sina.com.cn/s/

see the operation of the visit function, visited the http://www.zhihu.com/question/24597698, the title of the problem was extracted: "Millet 4 with 304 stainless steel In addition to enhance the texture and B-grid. Are there other practical advantages? -Knowing. " At the same time, the problem was also extracted: "The signal will not be as tragic as IP4 ..."."fetch:http://www.zhihu.com/question/24597698" is the output of the log, which represents a Web page that has been crawled.Suppose you wan

Get the local time of the current system, accurate to milliseconds, get the current millisecond 1 #include

A very useful js countdown! Real-time countdown of webpages, accurate to seconds, is the same as the principle of days countdown. Js countdown is generally used for Shopping Mall Website Group Buying and sale, which can be used in many places! Hope to help you!The effect is as follows:Copy codeThe Code is as follows:Ini_set ('date. timezone ', 'Asia/Shanghai ');$ Currenttime = time ();$ A = strtotime ('2017-2-14 ');$ B = $ a-$ currenttime;?>

function Check_date (){var begintime=$ (' #examStartTime '). Val ();var endtime=$ (' #examEndTime '). Val ();var begintimes = begintime.substring (0, ten). Split ('-');var endtimes = endtime.substring (0, ten). Split ('-');BeginTime = begintimes[1] + '-' + begintimes[2] + '-' + begintimes[0] + ' + begintime.substring (10, 19);EndTime = endtimes[1] + '-' + endtimes[2] + '-' + endtimes[0] + ' + endtime.substring (10, 19);var a = (Date.parse (endTime)-Date.parse (BeginTime))/3600/1000;if (a Alert (

My ubuntu installation and configuration experience (hd pdf, comprehensive and accurate !) -- Linux general technology-Linux technology and application information. For details, refer to the following section. I'm glad to have posted my first post. I have learned a lot about nutrition in the Community. I would like to express my gratitude to you !~ Attachment 2 is a collection of self-made starters to comprehensively improve your work efficiency!

Timing A program is too important for programmers. The clock () on windows is not accurate enough, and the precision is only 10 ms, which is really sad. I have studied how to use C, C ++ timing functions in windows.It mainly refers to the use of two functions. I first paste a piece of code that can be run and then talk about these two functions.[Cpp]1. # include 2. # include 3. int main (int argc, char ** argv)4 .{5. LARGE_INTEGER freq;6. LARGE_INTEGE

-7To: The type of coordinates to be converted to, can only be 5 or 6,5 for Baidu map coordinates, 6 for Baidu map metric coordinates (don't ask me what is the metric coordinates, I do not know ...)Callback: CallbackOf course it's just a hypothesis.3, register in CONVGPS callback, use the converted latitude and longitude to create a marker and place the center of the map on this latitude and longitude, that is, the same as the previous codeNote that the following code should not be used directly,

Wander in the tide of the InternetOne minute HTML page countdown can be accurate to seconds

1. Will be four colors five intovar num =2.446242342;num = num.toFixed(2); // 输出结果为 2.452.正则Number(15.7784514000.toString().match(/^\d+(?:\.\d{0,2})?/)) 3.最笨function get(){ var s = 22.127456 + ""; var str = s.substring(0,s.indexOf(".") + 3); alert(str);}4.正则onload = function () {var a = "23.456322";var anew;var re =/([0-9]+.[ 0-9]{2}) [0-9]*/;anew = A.replace (Re, "$");alert (anew);}5.var num=22.127456;Alert (Math.Round (num*100)/100);1. Discard the fractional part, preserving the whole number o

, 160041885696 bytes255 heads, sectors/track, 19457 cylinders, Total 312581808 sectorsunits = sectors of 1 * all = Bytessector size (logical/physical): bytes/512 bytesi/o Size (minimum/optimal): bytes/512 bytesdisk identifier:0xf0b1ebb0 Device Boot Start End Blocks Id system/dev/sda1 * 2048 117186559 58592256 linux/dev/sda2 117188606 312580095 97695745 5 extended/dev/sda5 117188608 273436671 78124032 linux/dev/sda6 273438720

Substep, then the first use of these substep to find the middle value between the frames, then substep is we get accurate motion effect blur.Look at the comparison of the three graphs before you go into detail:1 2 3Three pictures are all using the same point of rotation animation, here for comparison I put the camera shutter open to 1, that is, each frame is a full-length difference, the other is set to the fuzzy offset is 0, that is, the front frame