Flask修改请求路径后报错：The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.

Flask修改请求路径后报错：The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again. 后台python代码未报错，调试发现未接受到请求。 解决方法： 可能是之前启动了多个Flask应用，杀掉进程重新启动解决。