public async Task <IActionResult> DeleteTask(PlanManageViewModel model)
{
if (model.EditingTaskId == null)
{
return(StatusCode(500, "没有发送要删除的任务Id"));
}
await _planService.DeletePlanTerms(model.EditingTaskId.Value);
return(RedirectToAction(nameof(Manage), new { id = model.PlanId }));
}