预留手机号新加解释，优惠券新增备注，修改部分样式，优化table组件可以传属性

pages/handleLogin/index.wxml

@@ -46,11 +46,19 @@
       <van-field
         required
         value="{{ phone }}"
-        label="预留手机号"
         placeholder="请输入预留手机号"
         border="{{ true }}"
         bind:change="onChangePhone"
-      />
+      >
+        <view slot="label"> 
+          手机号 
+          <van-icon 
+            name="question-o" 
+            style="margin-left: 8rpx;font-size: 36rpx;" 
+            bind:tap="showTooltip"  
+          />
+        </view>
+      </van-field>
       <van-field
         required
         value="{{ name }}"
@@ -73,7 +81,7 @@
     </view>
   </van-tab>
 </van-tabs>
-
+<van-dialog id="van-dialog" />
 <search-select 
     show="{{show}}" 
     title="{{title}}"