double-quotes

问题 I've got some strings coming through a Model and am making html inputs from them. More or less as below: @inherits Nancy.ViewEngines.Razor.NancyRazorViewBase<dynamic> @{ this.Layout = "Views/Shared/Bootstrap.cshtml"; } <input id="ModelDescription" type="hidden" value='@if(this.Model.Model.Description != null) { @this.Model.Model.Description.Replace('a','b') } ' /> Which is all well and good. I've managed to get the replace a with b in there (the code I've inherited isn't the most stable of

问题 I've got some strings coming through a Model and am making html inputs from them. More or less as below: @inherits Nancy.ViewEngines.Razor.NancyRazorViewBase<dynamic> @{ this.Layout = "Views/Shared/Bootstrap.cshtml"; } <input id="ModelDescription" type="hidden" value='@if(this.Model.Model.Description != null) { @this.Model.Model.Description.Replace('a','b') } ' /> Which is all well and good. I've managed to get the replace a with b in there (the code I've inherited isn't the most stable of

问题 I'm trying to use applescript to run a command line process. A simplified version of the Applescript looks like this do shell script "echo bwfmetaedit --INAM=\"name\" --IART=\"artist\" --ICRD=\"date\" /desktop/filepath.wav" with the expected result being bwfmetaedit --INAM="name" --IART="artist" --ICRD="date" /desktop/filepath.wav If I were to just to run that command in Terminal, I get the correct output. However with applescript I get the following result. Note the missing double quotes

问题 I'm trying to use applescript to run a command line process. A simplified version of the Applescript looks like this do shell script "echo bwfmetaedit --INAM=\"name\" --IART=\"artist\" --ICRD=\"date\" /desktop/filepath.wav" with the expected result being bwfmetaedit --INAM="name" --IART="artist" --ICRD="date" /desktop/filepath.wav If I were to just to run that command in Terminal, I get the correct output. However with applescript I get the following result. Note the missing double quotes

问题 I'm trying to use applescript to run a command line process. A simplified version of the Applescript looks like this do shell script "echo bwfmetaedit --INAM=\"name\" --IART=\"artist\" --ICRD=\"date\" /desktop/filepath.wav" with the expected result being bwfmetaedit --INAM="name" --IART="artist" --ICRD="date" /desktop/filepath.wav If I were to just to run that command in Terminal, I get the correct output. However with applescript I get the following result. Note the missing double quotes

问题 I'm trying to use applescript to run a command line process. A simplified version of the Applescript looks like this do shell script "echo bwfmetaedit --INAM=\"name\" --IART=\"artist\" --ICRD=\"date\" /desktop/filepath.wav" with the expected result being bwfmetaedit --INAM="name" --IART="artist" --ICRD="date" /desktop/filepath.wav If I were to just to run that command in Terminal, I get the correct output. However with applescript I get the following result. Note the missing double quotes

问题 Is there any difference between enclosing grep patterns in single and double quotes? grep "abc" file.txt and grep 'abc' file.txt I'm asking since there's no way I could test all possible cases on my own, and I don't want to stumble into a case that I get wrong :) 回答1: I see a difference if you have special characters : Ex : grep "foo$barbase" file.txt The shell will try to expand the variable $barbase , this is maybe not what you intended to do. If instead you type grep 'foo$barbase' file.txt

问题 Trying to escape few special characters of string for sending it via xml api. Tried below code but not working for all the occurrences of Single Quote (') and Double Quote (") var strToReturn = "“Hello” ‘world’" strToReturn = strToReturn.replacingOccurrences(of: "&", with: "&") strToReturn = strToReturn.replacingOccurrences(of: "<", with: "<") strToReturn = strToReturn.replacingOccurrences(of: ">", with: ">") strToReturn = strToReturn.replacingOccurrences(of: "‘", with: "&apos;") strToReturn

问题 I realized I've been switching between them with no understanding as to why, and am finding it hard to search for. 回答1: ' ' and " " are the same thing; they are used to define string literals. Things without quotes can be an identifier, keyword, non-string literal, property name or a number (may have missed one). Examples: "hello world" literal (string) 'hello world' literal (string) with same contents document identifier (object) { a: 1 } property name if keyword (start conditional statement

问题 I realized I've been switching between them with no understanding as to why, and am finding it hard to search for. 回答1: ' ' and " " are the same thing; they are used to define string literals. Things without quotes can be an identifier, keyword, non-string literal, property name or a number (may have missed one). Examples: "hello world" literal (string) 'hello world' literal (string) with same contents document identifier (object) { a: 1 } property name if keyword (start conditional statement