bug fix

subpages/addMattresses/addMattresses.wxml

@@ -10,9 +10,9 @@
 
     <view class="w-card">
         <van-field model:value="{{ placeOfUse }}" center title-width="150rpx" label="使用地点：" placeholder="可填写卧室等地点"
-            clearable border="{{ true }}" />
+            clearable border="{{ true }}" maxlength="10" />
         <van-field model:value="{{ usingHuman }}" center title-width="150rpx" label="使用人：" placeholder="可填写本人或者其他人名称"
-            clearable border="{{ true }}" />
+            clearable border="{{ true }}" maxlength="8" />
         <van-field model:value="{{ sn }}" center title-width="150rpx" clearable label="SN：" placeholder="请输入"
             border="{{ true }}" use-button-slot>
             <view slot="button" class="lysb-btn" bindtap="bindViewBlue">