参考：http://stackoverflow.com/questions/8561774/hide-separator-line-on-one-uitableviewcell
CGFloat width = CGRectGetWidth(cell.bounds);
if (kIsIOS8) {
cell.separatorInset = UIEdgeInsetsMake(0, width, 0, 0); // 向左偏移
cell.indentationWidth = -width; // adjust the cell's content to show normally
cell.indentationLevel = 1;
}
else {
cell.separatorInset = UIEdgeInsetsMake(0, 0, 0, width);
}
