//不画分割线
tvDailySetting.separatorStyle = UITableViewCellSelectionStyleNone;
tvDailySetting.separatorStyle = UITableViewCellSelectionStyleNone;
//自绘分割线
-(void) drawRect:(CGRect)rect
{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor whiteColor].CGColor);
CGContextFillRect(context, rect);
CGContextSetStrokeColorWithColor(context, [UIColor colorWithRed:1/255.0f green:1/255.0f blue:1/255.0f alpha:1].CGColor);
CGContextStrokeRect(context, CGRectMake(15, rect.size.height, rect.size.width-30, 1));
}