点击软键盘回车键的时候想要触发微信小程序的提交表单事件，如何处理？

<form bindsubmit="searchSubmit" action="">
    <view class="weui-search-bar">
        <view class="weui-search-bar__form">
            <view class="weui-search-bar__box">
                <icon class="weui-icon-search_in-box" type="search" size="14"></icon>
                <input type="text" class="weui-search-bar__input" placeholder="搜索" value="{{inputVal}}" focus="{{inputShowed}}" bindinput="inputTyping" />
                <view class="weui-icon-clear" wx:if="{{inputVal.length > 0}}" bindtap="clearInput">
                    <icon type="clear" size="14"></icon>
                </view>
            </view>
            <label class="weui-search-bar__label" hidden="{{inputShowed}}" bindtap="showInput">
                <icon class="weui-icon-search" type="search" size="14"></icon>
                <view class="weui-search-bar__text">搜索</view>
            </label>
        </view>
        <view class="weui-search-bar__cancel-btn" hidden="{{!inputShowed}}" bindtap="hideInput">取消</view>
    </view>
</form>

searchSubmit: function(e) {
        console.info(12);
        console.info('form发生了submit事件，携带数据为：', e.detail.value)
    }"