你可以使用敲除绑定。例如：

//bind handler
ko.bindingHandlers.date = {
    update: function (element, valueAccessor, allBindingsAccessor, 
        viewModel, bindingContext) {
        var valueUnwrapped = ko.utils.unwrapObservable(valueAccessor());
        var textContent = moment(valueUnwrapped).format("DD/MM/YYYY");
        $(element).val(textContent);
    }
};

//view model
var ViewModel = function() {
    var self=this;
    self.ReceivedDate=ko.observable(new Date());
};

ko.applyBindings(new ViewModel());

//html
<input type="text" data-bind="date: ReceivedDate" />