html

        <div v-for="(item, i) in studentList">
          <el-form :label-position="left" label-width="60px" :inline="true">
            <el-form-item label="名字:" prop="name">
              <el-input
                v-model="studentList[i].name"
                clearable
                placeholder
 
="名字"
              ></el-input>
            </el-form-item>
            <el-button
              circle
              icon="el-icon-plus"
              @click="addList()"
            ></el-button>
            <el-button
              circle
              icon="el-icon-minus"
 

              @click="subList(i)"
              v-if="i > 0"
            ></el-button>
          </el-form>
        </div>

欄位定義

studentList: [{ name: "", value: "" }],

方法

    //加
    addList() {
      this.studentList.push({ name: "", value: "" });
    },
    //減
    subList(index) {
      
 
this.studentList.splice(index, 1);
    },