这是一种Pan 的技术 8 C% I! P! A' R2 q- Q8 v 6 d2 v0 X( c8 ]7 ^; g# a- `8 `' U. pThe basic idea behind panning as a technique is that you pan your camera along in time with the moving subject and end up getting a relatively sharp subject but a blurred background./ P) L2 t" N7 c9 M* U. i