点击＋号，增加form表单的子级应该怎么做能实现？-灵析社区

组件 添加 删除 export default { name: "form-row", model: { prop: "value", event: "change", }, props: { value: { type: Object, default: () => [], }, index: { type: Number, default: 0, }, }, watch: { value: { handler(val) { this.$emit("change", val); }, deep: true, }, }, methods: { // 添加子级 addChildren() { if (!this.value.children) { this.$set(this.value, "children", [{ userName: "" }]); } else { this.value.children.push({ userName: "", password: "" }); } }, // 删除该行表单 deleteRow() { // 抛出事件到父级执行 this.$emit("removeRow", this.index); }, // 删除子级 removeRow(index) { if (this.value?.children[index]?.children?.length > 0) { alert('请先删除子级') } else { this.value.children.splice(index, 1); } }, }, }; .form-row { display: flex; margin-bottom: 10px; } .form-row .el-button { height: 40px; margin-left: 10px; } 使用 import formRowVue from './views/formRow.vue'; export default { name: "myform", components: { formRowVue }, data() { return { formArray: [ { userName: "张三", password: '123456', children: [{ userName: "张三1", password: '123456' }, { userName: "张三2", password: '123456' }], }, ] } }, methods: { removeItem(index) { if (this.formArray[index]?.children?.length > 0) { alert('请先删除子级') } else { this.formArray.splice(index, 1); } } }, };