优化下单

pages/hotel/order.vue

@@ -240,7 +240,9 @@
 						</text>
 				</view>
 				<view class="sum-detail">共计 {{orderMsg.RoomCount}}间房</view>
-				<u-button :ripple="true" :hair-line="false" :custom-style="submit?btnStyle2:btnStyle" @click="buyRoom"
+				<u-button :ripple="true" :hair-line="false" 
+				:disabled="!this.orderMsg.TotalPrice||submit"
+				:custom-style="!this.orderMsg.TotalPrice||submit?btnStyle2:btnStyle" @click="buyRoom"
 					:loading="submit">立即购买</u-button>
 			</view>
 		</view>
@@ -566,6 +568,10 @@
 						}
 					}, err => {
 						uni.hideLoading();
+						uni.showToast({
+							title: err.message,
+							icon: 'none',
+						})
 						this.submit = false;
 					});
 			},