feat: 修改

src/pages/goods/detail.vue

@@ -22,7 +22,7 @@
         <view class="btns">
           <u-button type="warning" text="分享好友" class="share" open-type="share"></u-button>
           <u-button type="error" text="立即联系" class="contact" @click="toContact" v-if="!isMine"></u-button>
-          <u-button type="primary" text="立即购买" class="buy" @click="toBuy" v-if="!isMine || detail.amount || detail.status === 4"></u-button>
+          <u-button type="primary" text="立即购买" class="buy" @click="toBuy" v-if="!isMine && detail.amount && detail.status !== 4"></u-button>
         </view>
       </view>