const rule = ref({
  字段名称: [
    // 校验用户输入的长度避免超长 0-255个字符 超长
    { validator: rule.overLength, trigger: "blur" },
    // 根据字段自动查询后台是否重复
    {
      validator: (rule: any, value: any, callback: any) => {
        validateExist(rule, value, callback, form.id !== "");
      },
      trigger: "blur",
    },
  ],
});



  
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