Swift - 在tableview的多个部分处理自定义复选标记按钮状态

I have a tableview with multiple sections each section is having 3 cells , each cell contains the custom check mark button. Where user can change check and uncheck images of check button on click. The problem is, i am changing the cell button image from uncheck to check when user click on button which is working fine. If i scroll the tableview that check mark image is adding to wrong cell.I have a tableview with multiple sections each