let a=[‘
‘,’
‘]
echo matchstr(get(a,0),”[0-9]\+”)
echo matchstr(get(a,1),”\d\+”)
All display empty strings
:s/\d\+/xxx/cg
Can be matched to 4
But {pat} in matchstr () was not successful!
My friend upstairs, the first suggestion is right.
echo matchstr(get(a,0),"[0-9]\+")It is indeed empty, it is no problem