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Can the str_replace function in php replace three places at the same time? $ Content = str_replace ('# p # subtitle # e #', '', $ body ); $ Content = str_replace ('next page, ', $ body ); $ Content = str_replace ('/uploads', 'http: // www. *****. com/uploads', $ body ); Ladies and gentlemen, replace "# p # subtitle # e #" and "'in the $ body I want to output. please refer to the next page and"/uploads" How can this problem be achieved? Currently,

// KeyPress event: when the control gets the focus and the user presses and releases the key on the keyboard Private void textBox1_KeyPress (object sender, KeyPressEventArgs e) // the text box only accepts numbers and decimal places { // IsNumber: Specifies whether the character at the specified position in the string belongs to the digit category. // IsPunctuation: Specifies whether the character at the specified position in the string belongs to the

Js splits the string and places the split data in the array. js Array This example describes how to split a string in js and put the split data into an array. Share it with you for your reference. The specific implementation method is as follows: Var splitArray = new Array (); var string = "Pacific, Atlantic, Indian Ocean, Arctic Ocean"; var regex = //,/; splitArray = string. split (regex); for (I = 0; I I hope this article will help you design ja

SELECT count (expscore) as count, sum (expscore) as sum, max (expscore) as max, min (expscore) as min, round (Avg (EXPSCORE) * 1000)/1000 as avg, a. EXPACTID, B. teachercode, B. expname, c. classid, a. scoresubmit, a. scoreverify, c. schoolid FROM expscore a, EXPACTIVATED B, schoolmajorclass c Where a. expactid = B. expactid and B. schclassid = c. schclassid Group by a. EXPACTID, B. teachercode, B. expname, c. classid, a. scoresubmit, a. scoreverify, c. schoolid This is an SQL statement created

Oracle functions for processing decimal digits ()1. Take the rounded decimal placesSelect round (1.2345, 3) from dual;Result: 1.2352. retain the two decimal places.Select trunc (1.2345, 2) from dual;Result: 1.23 Select trunc (1.2399, 2) from dual;Result: 1.233. Take an integerReturns the largest integer greater than or equal to x:SQL> select ceil (23.33) from dual;Result: 24 Returns the largest integer equal to or less than x:SQL> select floor (23.33) from dual;Result: 23Returns the value of x r

Why can't functions such as Log. d be used in other places than onCreate? log. doncreateI am a self-taught dish. If you have any questions, I 'd like to ask:Is it necessary to use functions such as Log. d after onCreate? I used the mainactivity as soon as it came up. I cannot explain the log. d symbol. I got a reply from the great gods: Oncreat is a identifier for starting activty. If the program has not started, how can I print logs for you? Wh

Someone asked JavaScript how to intercept decimal places and rounding them out. This is a very common JS technology. Many new users may encounter this problem, so I sorted out the post, for new users. 1. Round MethodPurpose: return the nearest integer to the given numeric expression.Syntax: Math. Round (number). The required number parameter is the value to be rounded to the nearest integer.Note: If the decimal part of number is greater than or equal

Function check (ID ){VaR Re =/^ [0-9] + .? [0-9] * $/; // determines whether a number is a valid regular expression.VaR danjia = Document. getelementbyid ('danjia '+ id). value; // obtain the value of the unit price text box.VaR shuliang = Document. getelementbyid ('shuliang '+ id). value; // obtain the value of the quantity text box.VaR He = Document. getelementbyid ('He '+ id); // obtain the sum text boxIf (! Re. Test (danjia) {// verify whether the unit price is validAlert ("the unit price ha

: There is a foot cake in the farm of jiangjiaxiang at Terminal 146! (In fact, it can be done in many places, but it is not as good as before ~ Haha)The best fried bananas in Changsha: It's hard to find the alley in the place of wenmiaopiping ~ Ha, patience, 1.1 can be found !!The best thing in Changsha is the fort rice: I advocate the people opposite the geological correction, and there is one around 50 meters next to it. Although the environment is

Css places the element in a row of width: 33%, but the result is two rows, css33 % .inline-block { display: inline-block;}.width33 { text-align: center; width: 33%; box-sizing: border-box; border-left: 1px solid white;}.bottom-bar { position: fixed; bottom: 0px; width: 100%; background: rgb(239, 73, 99); height: 50px;} In fact: the div of Text 3 is pushed to the second row. The reason is that there is a small gap betwee

JQuery ui limits the elements that can be placed, and jqueryui places elements. $ (Document ). ready (function () {// enable the drag function $ ("# draggable, # draggable2 "). draggable (); // supports the drag and drop function $ ("# droppable "). droppable ({accept: "# draggable", // sets activeClass: "ui-state-hover", // specifies the hoverClass when the mouse passes: "ui-state-active", // style drop: function (event, ui) {$ (this) when the mous

1. Only require the retention of n bits not four 5 into float f = 0.55555f;int i = (int) (f * 100);f = (float) (i*1.0)/100;2. Keep n bits, rounded. Decimal d= Decimal. Round (decimal. Parse ("0.55555"), 2);3. Keep n-bit rounding Math.Round (0.55555,2)4, keep n bits rounded double dbdata = 0.55555; String str1 = Dbdata. ToString ("F2");//fn reserved n bits, rounded5. Leave n-bit rounding string result = String.Format ("{0:n2}", 0.55555);//2 bitstring result = String.Format ("{0:n3}", 0.55555);//3

JQuery controls that input can only input two digits and decimal places (amount), jqueryinput Function num (obj ){Obj. value = obj. value. replace (/[^ \ d.]/g, ""); // clear characters other than "Number" and "."Obj. value = obj. value. replace (/^ \./g, ""); // verify that the first character is a numberObj. value = obj. value. replace (/\. {2,}/g, "."); // only the first one is retained to clear unnecessaryObj. value = obj. value. replace (". ","

The first one:When the push out of a collectionview will crash, because there is no layout or what can not understand English, solutionRewrite the Init method in the interface you need to push out-(ID) init{Uicollectionviewflowlayout *layout = [[Uicollectionviewflowlayout alloc]init];if (self =[super initwithwithcollectionviewlayout:layout]) {}return self;}The second one:Random numbers appear when you use storyboard and code federation to pass values to another collectionview in order to fix thi

Public Static voidMain (string[] args) {String str= "86.64466666"; BigDecimal BD =NewBigDecimal (double.parsedouble (str)); System.out.println (Bd.setscale (2, bigdecimal.round_half_up). Doublevalue ()); System.out.println ("================="); DecimalFormat DF =NewDecimalFormat ("#.00"); System.out.println (Df.format (double.parsedouble (str))); System.out.println ("================="); System.out.println (String.Format ("%.2f", double.parsedouble (str))); System.out.println ("================

--%>var GEOC = new Bmap.geocoder ();Map.addeventlistener ("click", Function (e) {var pt = E.point;Geoc.getlocation (PT, function (RS) {var addcomp = rs.addresscomponents;var url= "http://api.map.baidu.com/marker?location=" +r.point.lat+ ","+r.point.lng+ "title= Target location content=" +addcomp.province + addcomp.city + addcomp.district + addComp.street + addcomp.streetnumber+ "output=html";window.location.href = URL;});});--%>Baidu Map search places

1. Page Operation formatting numbersOn the page sometimes use the number of operations, after the operation will appear 1.5999999999999 such a long number, need to format numbers, such as the retention of two valid digitsFirst import this label @ taglib URI = " http://java.sun.com/jsp/jstl/fmt " prefix = " FMT " %>Then use the label languagetype= "number" value= "${cost-beannums}" pattern = "0.00" maxfractiondigits = "2" />2. Pass the value to the page before formatting the numberDecimalFormat

A long time did not do, the principle is a little forgotten.The principle of the effectThe principle is actually very simple, first give a black background, by reducing the transparency of the picture, let the black background appear, the picture looks darker. Move the mouse to the picture 1, then let the other pictures in addition to the image 1 of the transparency of the lower, so that they look darker, so that the picture 1 appears brighterJs. Css. JQ can be usedHere's the principle of record

) return; ScrollBar Scroll=ScrollView; if(Scroll.viewportsize = =0|| Scroll.value + $scroll.maximum)return; if(Scrolltrigger! =NULL) {Scrolltrigger ( This. Associatedobject,NewEventArgs ()); } Base. Invokeactions (NULL); } }Pull-up loading is mainly to obtain Longlistselector scrollbar, by judging the current sliding value of scrollbar and the range can be determined by the maximum sliding value comparison to determine whether the end of the bottom, to reach the base

/** Processing a string with a number plus a decimal point, preceded by 0, leaving two bits. There is a circular interception method on the Internet, if the number is too long and the memory is wasted, this method is designed on the basis of optimized memory.*/-(nsstring*) Getthecorrectnum: (nsstring*) tempstring{First judge is not. Is. Complement 0if ([tempstring hasprefix:@ "."]) {tempstring = [NSString stringwithformat:@ "0%@", tempstring];}Calculate the length of the InterceptNsuinteger endl