Regarding my problem and solutions:
I am getting an error in js reporting an unfinished string constant when introducing jQuery's autocomplete component.
Cause analysis: First, right-click on the page to see that the encoding is utf-8.
Secondly, check the function that reports an error by js and find the corresponding function.
I found out that the exclamation mark in jQuery.autocomplete.js is in Chinese! Modify it to English!, and solve the problem of error.