text: /**
   * 变更格式为: 1 (999) 888 - 8888
   */
  export default (v) => {
    if (!v) {
      return ''
    }
    if (v === undefined) {
      return 'undefined'
    }
    if (v.length !== 10 && v.length !== 11) {
      return v
    }
    let country = v.length === 11 ? v.slice(0, 1) + ' ' : ''
    let number = v.length === 11 ? v.slice(1) : v
    return `${country}(${number.slice(0, 3)}) ${number.slice(3, 6)} - ${number.slice(6)}`
  }
  