关于日期的用法

1、<script type="text/javascript">
        var mydateInput = document.getElementById("aDate");
        var date = new Date();
        var dateString = date.getFullYear() + "/" + (date.getMonth() + 1) + "/" + date.getDate();
        mydateInput.value = dateString;
    </script>

<div class="col-lg-2">
              <div class="input-group">
                    <span class="input-group-addon" >创建日期</span>
                    <input type="Date" class="form-control" ID="aDate" runat="server" aria-describedby="basic-addon2" >
                </div>
          </div>

 

   DateTime dateTime1 = DateTime.Parse(DateTime.Now.AddSeconds(30).ToString());