vue+element实现表单校验功能

 <el-form
      :model="Opinion"
      ref="MyOpinion"
      :rules="rules"
      size="small"
      class="lj-form lj-form-s1"
     >
      <el-form-item label="审核意见: " prop="txt" style="margin-bottom:25px;">
       <el-input type="textarea" :rows="5" v-model="Opinion.txt"></el-input>
      </el-form-item>
     </el-form>

  data() {
   return {
 Opinion: {
     radio: "1",
     txt: "",
     value: ""
    },
    rules: {
     txt: [{ required: true, message: "请输入审核意见", trigger: "blur" }]
    }
   };
  },

 async approval() {
    let _this = this;
 this.$refs.MyOpinion.validate(async valid => {
      if (valid) {
       const res2 = await _this.$axios.post(`/approve/approve_refuse`, {
        ...obj
       });
       if (res2.data.error == 0) {
        _this.$message.success(res2.data.message);
       }
       _this.innerVisible = false;
       _this.visibleApply = false;
      }
     });
 }