difference between single quote and double quote

Learn a bash script today and see that there is a: bin= ' dirname '(dirname filename is the directory where the file is exported, and $ is the file name of the bash file, which is generally used in bash to enter the directory where the script is

(1) What is the difference between single and double quotation marks?1, can be used to escape the range, the single quotation mark can only escape the single quotation mark \ ', double quotation marks except single quotation mark cannot escape,

(1) What is the difference between single and double quotation marks? 1, can be used to escape the range, the single quotation mark can only escape the single quotation mark \ ', double quotation marks except single quotation mark cannot escape,

PHP single double quote difference, PHP double quote Difference in PHP, the definition of a string can use single quotation marks ' ' in English , you can also use double quotes " " in English . However, you must use the same single or double

Double quote resolution variable, single quote non-parsed variable, delimiter parse variableDirect output single quotation marks in double quotes, double quotes directly in single quotation marks,Single quote output single quotes need to be escaped,

JS,There's no difference between single and double quotes, just look at your own habits.However, if you use double quotes in double quotation marks, you need to use backslashes to suppress the parsing of double quotes: alert("ABC\"def\ "ghi"); But

Today in the online crawler, it is strange to find that Python string can be used both double quotation marks and single quotation marks, so on the internet Baidu for a reason.It turns out that there may be both double and single quotes in the

The difference between single quotation marks and double quotes in PHP In a programming language, both single and double quotes are important, as is the case in the PHP language. Compared to ASP, PHP quotation marks better use, in ASP, to put the

"1" single and double quotation marks when dealing with variables: Variables enclosed in double quotation marks will interpret the values, but they are not processed in single quotes and are output directly; "2" If you want to escape in the

One, single and double quotation marksFirst, both single and double quotes are meant to solve the problem of having spaces in the middle.Because the space is in Linux as a very typical delimiter, such as String1=this is a string, so execution will