UITableView Lazy Image Load，图像出现在STOPS表滚动之后

I implemented lazy image load for my UITableView using NSUrlConnection. This is all working very nicely. When I open my table, I automatically get the images when I wait for a second (on 3G). However, when I scroll, the table loads the new cell's, starts the NSURLConnections, but when the image is finished loading (in code), they do not get put into the view until the table actually stops scrolling..I implemented lazy image load for my UITableVie