In what language does and - hash - three - nine - semicolon (') represent the apostrophe? I had some website data extracted in JSON format where some of the user comments had apostrophe which were replaced by '.
So, what representation it is? I can not even google it as Google searches for apostrophe and not for and - hash - three - nine - semicolon.
It's HTML character references for encoding a character by its decimal code point
Look at the ASCII table here and you'll see that 39 is the code for apostrophe
来源：https://stackoverflow.com/questions/29314231/what-is-39-and-why-does-google-search-replace-it-with-apostrophe