获取到UITableView的cell

for (int i = 0; i<rows-1; i++) {

NSIndexPath *indexPath = [NSIndexPath indexPathForRow:i inSection:0];
UITextField *field = [_qiDiFaBuView.baseTable cellForRowAtIndexPath:indexPath].subviews[0];
UITableViewCell *myCell = [_qiDiFaBuView.baseTable cellForRowAtIndexPath:indexPath];
UITextField *field = myCell.subviews[0];
NSLog(@"%@",field);
NSLog(@"---%@",field.text);

if (field.text == nil) {

TYAlertView *alertView = [TYAlertView alertViewWithTitle:@"提示" message:@"请完整填写必须选项"];
[alertView addAction:[TYAlertAction actionWithTitle:@"确定" style:TYAlertActionStyleDefault handler:^(TYAlertAction *action) {}]];
TYAlertController *alerControl = [TYAlertController alertControllerWithAlertView:alertView preferredStyle:TYAlertControllerStyleAlert];
[self presentViewController:alerControl animated:YES completion:nil];

return;
}