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问题 I have a file of the following form: interesting text-MIB blah blah blah VERY INTERESTING TEXT interesting text-MIB blah blah blah In each line containing the "-MIB" string, I would like to delete the text following this string, until the end of the line. The following command seems to work as intended: sed -i -n -e 's/-MIB.*$/-MIB/p' ./myfile My problem is that it also deletes the lines where my pattern is not found. Here, the line "VERY INTERESTING TEXT" would be deleted. I am not really

问题 Right now I've got a paragraph and I'd like to capitalize the entire first line. I've set the first paragraph to an ID "firstp" and tried: #firstp::first-line { text-transform: uppercase; } I've tried it with text-transform: capitalize but that doesn't work either. It's strange because I've managed to change the first letter (changed font size) using #firstp:first-letter . 回答1: text-transform on :first-line is really buggy right now, see the reference here http://reference.sitepoint.com/css

问题 I was wondering if there is a straightforward way to display line numbers with StyledText text field - even if lines are wrapped. I'm using it in my application and if content gets to big, some line numbers would be nice. Thank you. 回答1: The key is org.eclipse.swt.custom.Bullet . It's basically a symbol (or in our case a number) you can add to the beginning of a line. //text is your StyledText text.addLineStyleListener(new LineStyleListener() { public void lineGetStyle(LineStyleEvent e) { /

问题 I am using the scatterplot function from the car package to generate a scatterplot. I want to be able to generate a reference line in the plot that should be x=y. I tried using abline and it does add a line but it is not the x=y line. Can someone help? My code is as follows: scatterplot(phenos$P1~pheno$P0, data=pheno,spread=FALSE,ylab="6 month timepoint", xlab="Baseline Timepoint", jitter=list(x=1, y=1)) abline(0,1) Thanks. 回答1: This is actually fairly difficult/hackish, because scatterplot()

问题 I have a little svg widget whose purpose is to display a list of angles (see image). Right now, the angles are line elements, which only have a stroke and no fill. But now I'd like to have an "inside fill" color and a "stroke/border" around it. I'm guessing the line element can't handle this, so what should I use instead? Notice that the line-endcap of the line's stroke is rounded. I'd like to maintain this effect in the solution. <svg height="160" version="1.1" viewBox="-0.6 -0.6 1.2 1.2"

问题 Is there any way how to read data from file from line to another line ? For example : In file are these lines: Line1: empty line Line2: empty line Line3: robert wa Line4: frank le Line5: silvia op Line6: empty line Line7: empty line Line8: andy sf . . And I need to only read everything from Line3 to Line6 So output will be : robert wa frank le silvia op And my file have 300 lines that I want print. Do you have any idea how to do it, or can you paste me some pseudocode Thanks 回答1: This should

问题 This is my code: #include<opencv\cv.h> #include<opencv\highgui.h> using namespace cv; int main(){ //create matrix to store image Mat image; //initialize capture VideoCapture cap(0); cap.open(0); //create window to show image namedWindow("window",1); while(1){ //copy webcam stream to image cap>>image; //print image to screen imshow("window",image); //Error line //delay 33ms waitKey(33); } } The error I get: opencv error: assertion failed (size.width>0 && size.height>0) in unknown function file

问题 Ultimately, I would like to know the position of the last character in a UITextView. I was able to find out the y position by using the following: CGSize size = [textView.text sizeWithFont:textView.font constrainedToSize:CGSizeMake(textView.frame.size.width-16, 10000) lineBreakMode:UILineBreakModeClip]; However in order to get the x position I need to get the text from the last line in the textview. I tried removing a character at a time from textView.text until size.height changes to achieve

问题 I'm having some trouble with serializing a ObservableCollection of Lines (Shape). I'm developing for Windows RT and I'm using JSON.NET v5.02. I'm getting the following exception for the code below: ObservableCollection<Line> lines; //some code string linesString = JsonConvert.SerializeObjectAsync(lines); // problem An exception of type Newtonsoft.Json.JsonSerializationException occurred in mscorlib.dll but was not handled in user code Additional information: Error getting value from 'X1' on

问题 This question already has answers here : Windows batch: echo without new line (15 answers) Closed 4 years ago . I am having a problem with my life creator program. It simply chooses random numbers that stand for something and puts it together. (I have tried combining variables) here is the code: @set num=1 @SET /A a=%RANDOM% * 10 / 32768 + 1 @if %a% == 10 set life%num%= ---- @if %a% == 9 set life%num%=O @if %a% == 8 set life%num%=^ @if %a% == 7 set life%num%=% @if %a% == 6 set life%num%=# @if