父组件:app.vue
<el-header> <sucaiheader :testData='copyDataT'></sucaiheader> </el-header>
<script> import sucaiheader from "components/sucaiHeader.vue"; export default { name: "homePage", data() { return { mianbaoxie: { id:'1', text:'居然跟传字符串不一样' }, copyDataT:'' } }, methods:{ copyData(){ var mianbaoxie = JSON.parse(JSON.stringify(this.mianbaoxie)) return mianbaoxie; } }, created(){ this.copyDataT= this.copyData() }, components:{ sucaiheader, }, }; </script>