00017layui-对话框-layeropen-点击保存按钮失效保存完后再恢复

var dialog = layer.open({   type: 2   ,title: '客户订单'   ,content: 'ordersForm.jsp'   ,maxmin: true   ,area: layui.setter.area   ,btn: ['保存', '取消']   ,btnAlign: 'c'   ,yes: function(index, layero){      var iframeWindow = window['layui-layer-iframe'+ index]         ,submit = layero.find('iframe').contents().find("#ordersForm-submit");      iframeWindow.layui.form.on('submit(ordersForm-submit)', function(data){                        var btn = $("a.layui-layer-btn0");                        if(btn.hasClass("layui-btn-disabled")){                            return;                        }                        btn.addClass("layui-btn-disabled");                        var field = data.field;                        field.id = rec.id;                        var orderServiceList = window.formData.orderServiceList;                        if(!orderServiceList || orderServiceList.length==0){                            btn.removeClass("layui-btn-disabled");                            return layer.msg('请添加合同事项');                        }                        field = $.extend(field,{orderServiceJson:JSON.stringify(orderServiceList)})                        var orderAttachmentList = window.formData.orderAttachmentList;                        if(!orderAttachmentList|| orderAttachmentList.length==0){                            btn.removeClass("layui-btn-disabled");                            return layer.msg('请上传合同附件');                        }                        field = $.extend(field,{orderAttachmentJson:JSON.stringify(orderAttachmentList)})                        field.status = 1;                        var rtn = admin.syncReq(ctx+"/order/orders/modify",field);                        console.log("field",field);                        if(rtn && rtn.code==0){                            layer.msg('操作成功');                            active.reload();                            form.render();                            btn.removeClass("layui-btn-disabled");                            layer.close(index);                        }else{                            layer.msg('操作失败');                            btn.removeClass("layui-btn-disabled");                        }      });      submit.trigger('click');   }});

关键代码：一开始直接添加禁用样式

                        var btn = $("a.layui-layer-btn0");                        if(btn.hasClass("layui-btn-disabled")){                            return;                        }                        btn.addClass("layui-btn-disabled");

操作完后，恢复：

btn.removeClass("layui-btn-disabled");