rules: {
        type: [
          { required: true, message: "类型不能为空", trigger: "change" }
        ],
        age: [
          { required: true, msg: "年龄不能为空", trigger: "blur" , validator:limitNumber}
        ],
        count: [
          { required: true, msg: "数目不能为空", trigger: "blur" , validator:limitNumber}
        ],
        price: [
          { required: true, msg: "服务费不能为空" isInteger:true, trigger: "blur" , validator:limitNumber}
        ],
      }

export default {
  data() {
    let limitNumber = (rule, value, callback) => {
      if (!value&&!(value?.trim())) {
        return callback(new Error(rule.msg))
      } else if(isNaN(value)){
        callback(new Error('只允许输入数字'))
        //如果某个字段要求整数+数字
      } else if (rule.isInteger && !Number.isInteger(+value)) {
        callback(new Error('只允许输入整数'))
      } else if (value.trim() < 0) {
        callback(new Error('数字应大于等于0'))
      } else {
        callback()
      }
    }
    return {
      loading: true,
      total: 0,

限制电话号码(如果某些字段不是必填，但是填了就要校验)

    let phoneNumberValid = (rule, value, callback) => {
      if (value) {
        if (!Number.isInteger(+value)) {
          callback(new Error('必须全为数字'))
        } else if (value.trim().length < 8 || value.trim().length > 12) {
          callback(new Error('数字长度必须在8到12之间'))
        } else {
          callback()
        }
      } else if (rule.required) {
        // 如果没值又是必填
        callback(new Error(rule.msg))
      } else {
        callback()
      }
    }

       phoneNumber: [
          { required: false, msg: "联系电话不能为空", trigger: "blur", validator: phoneNumberValid }
        ],
        cNumber: [
          { required: true, msg: "用户联系电话不能为空", trigger: "blur", validator: phoneNumberValid }
        ],