在点击键盘上的确认按钮时，会通知事件this.triggerEvent('searcheven', {value: e.detail.value || ''})
使用方式
"usingComponents": {
"wo-search": "/miniprogram_npm/wo-search/index"
}
eg:
<wo-search bindsearcheven = "_searcheven"></wo-search>
_searcheven(e) {
this.scrollupper({key: e.detail.value})
},
通常配合<view bindtap="goSearch"><include src="/miniprogram_npm/wo-search-go/index.wxml" /></view>模板使用
