textarea 不限制输入内容

pages/input_content/input_content.wxml

@@ -5,7 +5,7 @@
         <text bindtap="send">发送</text>
     </view>
     <view class="write">
-        <textarea class='shareArea' placeholder="写点什么..." bindinput="bindKeyInput"/>
+        <textarea class='shareArea' maxlength='-1' placeholder="写点什么..." bindinput="bindKeyInput"/>
         <view wx:if="{{type == 2}}">
             <block wx:for="{{tempFilePath}}" wx:key="{{index}}">
                 <image class="minImg" mode='aspectFill' src="{{item}}" bindtap="listenerButtonPreviewImage" data-index="{{index}}"/>