等不到的口琴

摘要： Chrome报错内容: Access to XMLHttpRequest at 'http://xxxx' from origin 'http://localhost:3000' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: The 'Access-Control-Allow-Origin' header contains multiple values '*, http://localhost:9001/educenter/member/register', but only one is allowed.https://img2020.cnblogs.com/blog/2002319/202011/2002319-20201124112957957-2018626067.png 阅读全文

摘要： 打开navicat连接Mysql无缘无故报错"missing required library sqlite.dll" 阅读全文