1：给a-modal增加按钮
<a-modal title="搜寻条件" v-model="searchModal"> <template slot="footer"> <a-button key="back" @click="cancel">勾销</a-button> <a-button key="submit" type="primary" @click="confirm">搜寻</a-button> <a-button @click="reset">重置</a-button> </template></a-modal>