Match lines that do not contain some strings

  question, vim
 This vim expression: matches a line that contains one of the following characters and prints it
 <  #   }
 Now I want to match all lines that do not contain the character < #}. how do I write regular expressions?

Use:v/[<#}]/pJust do it
v/patternThe meaning is to findThose results that do not conform to pattern.
You can pass:help :vOr:help :gSee the difference between them.