UITableViewCell分割线位置调整

1.cell分割线两边位置调整，如：顶格、间距大小控制

cell.separatorInset = UIEdgeInsetsZero;
cell.layoutMargins = UIEdgeInsetsZero;
cell.preservesSuperviewLayoutMargins = NO;

2.控制某一行cell分割线不显示

#define TT_SCREEN_WIDTH [UIScreen mainScreen].bounds.size.width

cell.separatorInset = UIEdgeInsetsMake(0, 0, 0, TT_SCREEN_WIDTH);
cell.layoutMargins = UIEdgeInsetsMake(0, 0, 0, TT_SCREEN_WIDTH);
cell.preservesSuperviewLayoutMargins = NO;