comma

问题 public static void printGrid(int rows, int cols) { int totalNum = rows * cols; for (int i = 1; i <= rows; i++) { for (int k = 0; k < cols; k++) { System.out.print(i + rows * k + ", "); } System.out.println(); } } Outputs = 1, 4, 7, 10, 13, 16, 2, 5, 8, 11, 14, 17, 3, 6, 9, 12, 15, 18, I want to remove the trailing commas by the last numbers in each line, but I do not have a variable as a string holding them, just a print statement. Is there any way to do this? 回答1: Simply, print it only when

问题 My actual data is as follows : <image name="101272.dcm"> <gobject type="Right"><polyline><vertex index="0" t="0.0" x="636.0" y="1920.0" z="0.0"/><vertex index="1" t="0.0" x="604.0" y="2296.0" z="0.0"/></polyline></gobject> </image> <image name="101280.dcm"> <gobject type="Right"><polyline><vertex index="0" t="0.0" x="1776.0" y="392.0" z="0.0"/><vertex index="1" t="0.0" x="1456.0" y="424.0" z="0.0"/></polyline></gobject> </image> I was successful in extracting all other data as required. But

问题 Team, i have another scenario, i need to split 4 columns and also 8 columns split, i changed the beginning code declare @numCols int = 4 i tried to change the final join statement, not able to achieve, Can you help on this. i could not able to join the single join statement at the end of the function declare @String varchar(max) set @String='sunday,9,meals,EYR,sunday,9,meals,USD,monday,9,meals,USD,friday,9,meals,USD' begin declare @numCols int = 4 declare @itr int = 0 declare @SplittedValues

问题 I'm trying to read a comma separated text file that looks like the following: 2017-10-24,01:17:38,2017-10-24,02:17:38,+1.76,L,Meters 2017-10-24,02:57:31,2017-10-24,03:57:31,+1.92,H,Meters 2017-10-24,05:53:35,2017-10-24,06:53:35,+1.00,L,Meters 2017-10-24,10:45:01,2017-10-24,11:45:01,+2.06,H,Meters 2017-10-24,13:27:16,2017-10-24,14:27:16,+1.78,L,Meters 2017-10-24,15:07:16,2017-10-24,16:07:16,+1.92,H,Meters 2017-10-24,18:12:08,2017-10-24,19:12:08,+0.98,L,Meters My code so far is: LT_data = fopen

问题 I have a .txt file with rows consisting of three elements, a word and two numbers, separated by commas. For example: a,142,5 aa,3,0 abb,5,0 ability,3,0 about,2,0 I want to read the file and put the words in one variable, the first numbers in another, and the second numbers in another but I am having trouble with textscan . This is what I have so far: File = [LOCAL_DIR 'filetoread.txt']; FID_File = fopen(File,'r'); [words,var1,var2] = textscan(File,'%s %f %f','Delimiter',','); fclose(FID_File)

问题 I'm trying to separate this csv file into a 2D list. The problem with my code currently is that it cuts off a few fields on lines with quotes in the data. There are quotes there to signify that the comma within is not part of the comma separation of fields and is actually part of the field. I posted the code, example data, and example output. You can see how the first output line skips a few fields compared to the rest because of the quotes. What do I need to do with the regular expression

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: How do I format a number in java? String.format() to format double in java I want to be able to take the output from a double variable (called double) and put it in a TextView along with some String text (called outputPref, which just contains "cubic mm") like below displayAnswer.setText(volume + " " + outputPref); This works fine, however, the number shows in the TextView as the full double (with many, many

问题 I'm trying to produce a Google Shopping feed of 30,000+ items in NetSuite, a CRM system that runs server-side JavaScript that it calls Suitescript 2.0. Essentially, it's just JavaScript with a few more restrictions. I've been tasked with outputting this product feed as a CSV. The problem is that the product descriptions of these items contain variables amounts of commas, double quotes, single quotes and HTML. At first, it was just the commas causing me problems, so after a bit of research, I

问题 def csv_split() : raw = [ '"1,2,3" , "4,5,6" , "456,789"', '"text":"a,b,c,d", "gate":"456,789"' ] cr = csv.reader( raw, skipinitialspace=True ) for l in cr : print len( l ), l This function outputs following: 3 ['1,2,3 ', '4,5,6 ', '456,789'] 6 ['text:"a', 'b', 'c', 'd"', 'gate:"456', '789"'] As you can tell, the first line is correctly split into 3 entries. But the second line is NOT. I would expect the csv reader splits it into two, instead we've got 6 here. I have also thought about regex

问题 For example, I've got a text file indicating writers of powershell scripts, each line looks like: Hello world.ps1:John Smith Dowork.ps1:Blake Benn I wish to find first ":" in each line and replace with "," so I can get a csv file, Hello world.ps1,John Smith Dowork.ps1,Blake Benn I tried with "-replace", but failed: "Hello World.ps1:John Smith" -replace ":" "," At line:1 char:43 + "Hello World.ps1:John Smith" -replace ":" "," + ~~~ Unexpected token '","' in expression or statement. +