Due to the upgrade of the latest chrome browser, the ftp cannot be opened through the windows explorer. After investigation, it turned out that the new chrome installation modified the registry of ftp in windows. For details, please refer to the following article:
http://blog.csdn.net/tianwuya217/article/details/8674622
There is a way to modify the registry in the attachment, you can directly download and open it, and it is feasible to test it yourself.