now ihave a project ,i wanna use “saveStringToFile” to save my string to a file ,however i have to make newlines,i use"/n" but it does not work,i am seeking a solution for that 
now ihave a project ,i wanna use “saveStringToFile” to save my string to a file ,however i have to make newlines,i use"/n" but it does not work,i am seeking a solution for that