在3楼看到答案后，我试图弄清楚设置TableView和TableViewCell之间的分隔符是什么关系，并做了一些测试。以下是我的结论:

we can consider that setting the cell's separator to zero has to move the separator in two steps: first step is to set cell's separatorinset to zero. second step is to set cell's marginlayout to zero. set the TableView's separatorinset and marginlayout can affect the Cell's separatorinset. However, from the test, I find that the TableView's separatorinset seem to be useless, TableView's marginlayout can actually affect cell's marginlayout. set Cell's PreservesSuperviewLayoutMargins = false, can cut off TableView's marginlayout effect on Cells. one of the solutions: func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { var cell = UITableViewCell() cell.preservesSuperviewLayoutMargins = false cell.separatorInset = UIEdgeInsetsZero cell.layoutMargins = UIEdgeInsetsZero return cell }

对我来说，简单的线条就够了

cell.layoutMargins = UIEdgeInsetsZero

下面是来自@cdstamper的回答，一个更好的地方是UITableViewCell的layoutSubviews，在你的单元格文件中(我设置了1%的间距，你可以设置为零)，所以只需要在这里设置代码来处理所有情况(旋转和其他):

 -(void)layoutSubviews
    {
        [super layoutSubviews];
        if ([self respondsToSelector:@selector(setSeparatorInset:)]) {
            [self setSeparatorInset:UIEdgeInsetsMake(0,self.bounds.size.width*0.01,0,self.bounds.size.width*0.01)];
        }
        if ([self respondsToSelector:@selector(setLayoutMargins:)]) {
            [self setLayoutMargins:UIEdgeInsetsMake(0,self.bounds.size.width*0.01,0,self.bounds.size.width*0.01)];
        }
    }

简单地把这两行放在cellForRowAtIndexPath方法中

如果你想要所有的分隔线都从0开始 (细胞setSeparatorInset: UIEdgeInsetsZero); (细胞setLayoutMargins: UIEdgeInsetsZero);

如果你想特定的分隔线是从0开始假设这是最后一行是从0开始

if (indexPath.row == array.count-1) 
{
   [cell setSeparatorInset:UIEdgeInsetsZero];
   [cell setLayoutMargins:UIEdgeInsetsZero];
}
else
   tblView.separatorInset=UIEdgeInsetsMake(0, 10, 0, 0);

Arg ! !在你的Cell子类中做这些事情后:

- (UIEdgeInsets)layoutMargins
{
    return UIEdgeInsetsZero;
}

或者设置单元格。layoutmargin = UIEdgeInsetsZero;帮我修好了。

在Swift中你可以使用这个

    cell.selectionStyle = UITableViewCellSelectionStyle.None
    cell.preservesSuperviewLayoutMargins = false
    cell.separatorInset = UIEdgeInsetsZero
    cell.layoutMargins = UIEdgeInsetsZero