ios uitableview uitableviewcell重用有旧数据

we all know that the cell in uitableview can be resued, but i am seeing some weird results. i am create a custom cell, each cell has 4 columns, each column has an image so format is like this |img|img|img|img| after the cell is returned, i am configuring each cell, an example would be configuring first column to picture 1, then second column to different picturewe all know that the cell in uitableview can be