First ,sorry for my non-idiomatic english .

when I‘m copied info into vim from another app, i found no '"+' or '"+' register existing by using command ":reg".this mean i can't get through this copying.with consider a moment,i focus this on X11 that doesn't the copying from app use different clipboard of X11.i think vim use another one.
is there way to resolve this ?and better to explain this detaiedly.thanks

To paste into vim (or any vi style editor) you need to be in "insert" mode then do the paste. Also you need to do the insert at the point you wish to do the paste.

There are various ways to start insert mode. "i" is simple insert mode starting at present position. "o" is insert starting at a new line below current one. "O" is insert starting a new line above the current one.

Pasting method once in insert mode depends on the terminal technology you're using. For example with a two button mouse in a PuTTY terminal window or an Xterm I simply click the right mouse button. On a three button mouse it might be click on the middle button. Some term types require you to right click and select "paste".

I regularly paste things from my Windows applications into my PuTTY windows into Linux/UNIX boxes using the the right button. Similarly if I want to copy from Linux/UNIX to Windows I can simply do a highlight of text to put it in the buffer for PuTTY then use "ctrl-V" in the Windows app to do paste.

Thank you. it seems that my inference is correct and the only solution is to modify the buffer with which terminal used, or special tools.(if there be,then tell me)

If I am not mistaken, the buffer for "outside of vi" is "* (double-quote-star) and not "+.

So, you select text in another app and copy it. Then move to your vim window, press "esc" two times, move the cursor where you want to insert and press
:"*p
(colon-double quote-star-letter p)
and that should be it.

"* is the buffer
p is the paste command.

If you want to copy from vim, you select the text and go
:"*y

Sorry,it is my typing mistake. Re-Say it again: in my vim on FC linux , i have not both "* and "+.This is the central issue i got.