comparison

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 5 years ago . I have a static variable that I use as a counter and a non-static version of the variable that I use to save the value of the counter at certain events. Here is some code: Header: static int UndoID; int UndoRedoID; void SetUnsavedChanges(); Class: At various parts of the class I try something like

问题 So a field called schools in the database might have a value of: '13,121,112,1212' I'm using that to show the potential for a mistake. Suppose I'm looking for a value of 12 in that field. The commas denote a "whole number" and I don't want to match 112 or 1212 Is there a more elegant match than this? @compare = 12; WHERE CONCAT(schools,',') LIKE CONCAT('%',compare,',%) I was recently impressed by the GROUP_CONCAT function but this is kind of in reverse of that. Thanks! 回答1: For this simple

问题 I tried to sort my List[Row] data set and here is how I made for it. def getDiffMinute(ts1:Timestamp, ts2:Timestamp) : Long = { if(ts1==null || ts2==null) 0 else (ts1.getTime - ts2.getTime) / 60000 } myList.sortWith( (r1: Row, r2: Row) => MYUtils.getDiffMinute( r1.getAs[Timestamp]("time"), r2.getAs[Timestamp]("time")) < 0 ) Since getDiffMinute function return Long type data and wortWith need bool type, there is no way to get exception. Some data lists work so well, but others(especially big

问题 This question already has answers here : How does Python 2 compare string and int? Why do lists compare as greater than numbers, and tuples greater than lists? (2 answers) Ordering of string representations of integers [duplicate] (6 answers) Closed 3 years ago . I have numerical values that are loaded from a JSON object and are therefore all strings. I am having issues with making numerical comparisons with these strings. The following makes no sense to me and I was hoping one of you

问题 I found a strange behavior when working with tuples in numpy arrays. I want to get a table of booleans telling me which tuples in array a also exist in array b . Normally, I would use any of in , in1d . None of them work while tuple(a[1]) == b[1,1] yields True . I fill my a and b like this: a = numpy.array([(0,0)(1,1)(2,2)], dtype=tuple) b = numpy.zeros((3,3), dtype=tuple) for i in range(0,3): for j in range(0,3): b[i,j] = (i,j) Can anyone tell me a solution to my problem and please enlighten

问题 I have following problem, kindly help solve this by looping/recursion/function or any other suitable method. The problem is the following: if (($a[0]==$a[1]) && ($a[1]==$a[2])) do operation1 else if(($a[0]==$a[1])&& ($a[1]!==$a[2])) do operation2 However, I tried by many approaches, one of them is: for($x=1; $x<$arrlength; $x++) { $a = (strncasecmp($sort[$x],$sort[$x++],strpos($sort[$x],'-')) == 0); for ($y = 2; $y < $x; $y++) { $b = (strncasecmp($a,$sort[$y+1],strpos($a,'-')) == 0); switch (

问题 I'm trying to make a function that will compare multiple variables to an integer and output a string of three letters. I was wondering if there was a way to translate this into Python. So say: x = 0 y = 1 z = 3 mylist = [] if x or y or z == 0 : mylist.append("c") if x or y or z == 1 : mylist.append("d") if x or y or z == 2 : mylist.append("e") if x or y or z == 3 : mylist.append("f") which would return a list of ["c", "d", "f"] Is something like this possible? 回答1: You misunderstand how

问题 I'm trying to create a macro which copies rows of data after comparing a column value. I previously asked this question but made some progress, and thought it would be less confusing if i posted another question. The column to be compared is "eRequest ID" and it consists of integers and text. I have two worksheets, both with "eRequest ID" as the first column. The goal here is to copy ANY rows of data that has an "eRequest ID" NOT FOUND in both worksheets. Meaning if this record's "eRequest ID

问题 My query is quite simple: select a.ID, a.adres, a.place, a.postalcode from COMPANIES a, COMPANIES b where a.Postcode = b.Postcode and a.Adres = b.Adres and ( select COUNT(COMPANYID) from USERS where COMPANYID=a.ID )>( select COUNT(COMPANYID) from USERS where COMPANYID=b.ID ) Database: sql server 2008 r2 What I'm trying to do: The table of COMPANIES contains double entries. I want to know the ones that are connected to the most amount of users. So I only have to change the foreign keys of

问题 This question already has answers here : VBA Macro to compare all cells of two Excel files (2 answers) Closed 4 years ago . I would like to know if using VBA I can compare two similar excel files and shows the differences highlighting the background of cells or rows with different colors. 回答1: Loop through all the cells and make simple comparison, and highlight (change background color) cells that did not match. 来源： https://stackoverflow.com/questions/2871932/is-it-possible-compare-two-excel