We see that the originally displayed folder is missing a dot.
If you put a 123 in the same directory.
Then create a 123 directory.
When you access 123., you are actually accessing the 123 folder. So when looking at the size, it can display the size of the 123 directory. If there is no 123 directory, it is 0.
The system recognizes 123. as the attributes of 123... So you can't see the actual size, and the same reason you can't access it by double-clicking is this. After you create 123, it is equivalent to accessing the 123 folder.
You can also delete 123., and there is no error prompt, because it will delete the 123 directory.
PS:
I don't know if you can guess after reading the above?
Accessing a directory with a dot is not necessarily starting with start...
After knowing the above, it is easy to understand...
It should be original hehe. At least I didn't copy it from other places.
md 123..\
Accessing this directory is accessing that malformed directory with a dot, and the size and other things are all okay~