conditional

问题 For my assignment, I'm storing user login infos. I'm taking in a string which is the command. The command can be create, login, remove, etc. There are 10 total options, i.e 10 different strings possible. Can anyone explain a more efficient way to write this instead of 10 if and else if statements? Basically how should I format/structure things besides using a bunch of if (string == "one") , else if (string == "two") . Thank you 回答1: I expect that your lecturer would like you to extract

问题 I tried to write a prolog code that can understand student program written in C#. Now I'm stuck in the process of recognizing the 'if' statement in student's program. For example: The following is the code that I expect from the student. int d = int.Parse(Console.ReadLine()); // value d is inputted by user int s = 0; if (d>0) s = 2; else if (d==0) s = 1; else s = 0; I defined the goal of this expected code as: goal:- hasVarName(Vid_s, s), hasVarName(Vid_d, d), hasVarValue(Vid_d, Vd), ((not(gt

问题 I am new to Excel VBA and could really use some help. I tried searching for a solution throughout the web but was unable to find a similar problem. I am trying to create a macro that will help to delete Rows based on certain criteria and continue deleting rows until another certain criterion is met. So for example. In the table below, I would like to delete Rows where Col A = 1 AND Col C = 0, and then continue deleting the rows below that row UNTIL Col A = 1 and Col C <> 0 A | B | C -----|---

问题 This is the Problem Table: UNIQUE ID NAME TYPE PRICE PAYMENT METHOD Reference hbg5-5rdw-6ts Bagui RECEIVED 150 MANUAL CREDIT CARD asd4e-4rs-5tg Cams RECEIVED 100 CASH 181088 fg6gh-rfd4-tgv Cams TRANSFER 100 CASH 181088 a3accf-wrf-aw Chels RECEIVED 700 MANUAL COD 1sder-5tg7-gcd Chels SUCCESS 500 CHECK asde-1d-sedc Chels SUCCESS 500 CHECK 1sder-5tgs7-gcd5 Failed ased-asd-sedf Duzy RECEIVED 250 DEBIT 181077 5rt4w-4sd-zsd Duzy TRANSFER 250 DEBIT 181077 4er-445ff-thc Jose RECEIVED 300 CASH 157075

问题 How can I make a loop pause when a certain condition is satisfied? In the example below loop just shows all values at once while I want it to stop any time it gets across specific value (e.g. 2): a = [1,1,1,2,1,1,1,3,4,2,1] for (var i = 0; i < a.length; i++) { if(a[i] == 2){ setTimeout(console.log(a[i]), 1000) }else{ console.log(a[i]); } }; 回答1: You can't do it directly but you can emulate it as follows (you can test the code here: http://jsfiddle.net/xSu5J/): function myLoop(a) { function

问题 This has been updated to clarify the question so it can better help others in the future. I am attempting to use an if statement to test if the key classes exists in a JSON structure using Python. to check if a key exists in a JSON structure using Python. I am able to get the key but need help finding out what the condition should be to check if it exists. I successfully was able to return the value of the key class when it is exsits in the JSON structure using the following code: #Parameter:

问题 This post is related to the previous post here: match rows of two data.tables to fill subset of a data.table Not sure how I can integrate them together. I have a situation where other than the NA for one column of DT1, a couple of more conditions should apply for merging, but that doesn't work. > DT1 <- data.table(colA = c(1,1, 2,2,2,3,3), colB = c('A', NA, 'AA', 'B', NA, 'A', 'C'), timeA = c(2,4,3,4,6,1,4)) > DT1 colA colB timeA 1: 1 A 2 2: 1 <NA> 4 3: 2 AA 3 4: 2 B 4 5: 2 <NA> 6 6: 3 A 1 7:

问题 I wonder that do i follow correct approach and need your help to figure out Here my non-protected query DECLARE @cl_WordId bigint = NULL SELECT @cl_WordId = cl_WordId FROM tblWords WHERE cl_Word = @cl_Word AND cl_WordLangCode = @cl_WordLangCode IF (@cl_WordId IS NULL) BEGIN INSERT INTO tblWords (cl_Word, cl_WordLangCode, cl_SourceId) VALUES (@cl_Word, @cl_WordLangCode, @cl_SourceId) SET @cl_WordId = SCOPE_IDENTITY() SELECT @cl_WordId END ELSE BEGIN SELECT @cl_WordId END And to protect it, i

问题 Please consider : dalist = Transpose@{{"Noise1",1,1,1,1,1},{"Blah", 1, 2, 3, 4, 5}, {"Noise2",2,2,2,2,2}, {"COGCondition", 1, 2, 1, 2, 1}} COGCondition1 = 10 COGCondition2 = 20 I would like to replace the values in column "Blah" given the value taken in column "COGCondition" such that: If, for a given row, the value in column "COGCondition" = 1 the value in column "Blah" should be equal to COGCondition1 (And 2 -> COGCondition2) Desired output: I need this for a large data set and my attempts

问题 How do I determine the color of a cell equal to another, example: A4 is then C2 is cyan color cyan. A2 is then C2 orange color is orange. 回答1: There is no excel-formula to get you the color of a cell, nor is there one, to set the color of a different one. However, you can make a function to get the color of a specific cell - or, like in my example, the color of the function-calling cell: Public Function GetColor() Dim rng As Range If TypeName(Application.Caller) = "Range" Then Set rng =