成功vue动态生成对象

<template>
  <div class="app-container">
    <el-form
      :model="dynamicValidateForm"
      label-width="120px"
      ref="dynamicValidateForm"
    >
      <el-form-item
        :key="domain.name"
        :label="domain.label"
        :prop="domain.name"
        :rules="rules"
        v-for="domain in dynamicValidateForm.domains"
      >
        <el-input
          type="money"
          :disabled="domain.editable"
          autocomplete="off"
          v-model.number="domain.value"
        >
        </el-input>
      </el-form-item>
    </el-form>
    <el-button type="primary" @click="add()">确定添加</el-button>
  </div>
</template>
<script>
import { add } from "@/api/test";
export default {
  data() {
    return {
      dynamicValidateForm: {
        domains: [
          { name: "username", label: "用户名", value: "", editable: 0 },
          { name: "num1", label: "数量", value: "0", editable: 0 },
        ],
      },
      rules: [],
      id: "",
    };
  },
  methods: {
    add() {
      //先判断表单是否通过了判断
      this.$refs.dynamicValidateForm.validate((valid) => {
        //代表通过验证 ,将参数传回后台
        if (valid) {
          let params = Object.assign({}, this.dynamicValidateForm);
          var jsonstring = "";
          var obj={};
          this.dynamicValidateForm.domains.forEach((element) => {
            this.$set( obj, element.name, element.value);
          });
       
          add(obj).then((res) => {
            this.$message({
              type: "info",
              message: res.Message,
            });
            if (res.Code == 702) {
              return;
            }
            this.$router.push("/patient/TEST/test_list");
          });
        }
      });
    },
  },
};
</script>

<style scoped>
.line {
  text-align: center;
}
</style>
关键代码：

var obj={};
          this.dynamicValidateForm.domains.forEach((element) => {
            this.$set( obj, element.name, element.value);
          });