/**
 * yy-mm-dd
 */
export const dateFtt = date => {
    if (date == null) {
      return ''
    }
    let year = date.getFullYear()
    let month = date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1
    let day = date.getDate() < 10 ? '0' + date.getDate() : date.getDate()
    return `${year}-${month}-${day}`
  }
  
  /**
   * yy-mm-dd hh:mm:ss
   */
  export const dateTimeFtt = date => {
    if (date == null) {
      return ''
    }
    let year = date.getFullYear()
    let month = date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1
    let day = date.getDate() < 10 ? '0' + date.getDate() : date.getDate()
    let hh = date.getHours() < 10 ? '0' + date.getHours() : date.getHours()
    let mm = date.getMinutes() < 10 ? '0' + date.getMinutes() : date.getMinutes()
    let ss = date.getSeconds() < 10 ? '0' + date.getSeconds() : date.getSeconds()
    return `${year}-${month}-${day} ${hh}:${mm}:${ss}`
  }
  
  /**
   * 将字符串形式的日期转换成日期对象
   */
  export const dateNew = date => {
    if (date === undefined || date === 'undefined') {
      return new Date()
    }
    return new Date(Date.parse(date))
  }
  
/**
 * 小数加法
 */
export const accAdd = (arg1, arg2) => {
  var r1, r2, m, c
  try {
    r1 = arg1.toString().split('.')[1].length
  } catch (e) {
    r1 = 0
  }
  try {
    r2 = arg2.toString().split('.')[1].length
  } catch (e) {
    r2 = 0
  }
  c = Math.abs(r1 - r2)
  m = Math.pow(10, Math.max(r1, r2))
  if (c > 0) {
    var cm = Math.pow(10, c)
    if (r1 > r2) {
      arg1 = Number(arg1.toString().replace('.', ''))
      arg2 = Number(arg2.toString().replace('.', '')) * cm
    } else {
      arg1 = Number(arg1.toString().replace('.', '')) * cm
      arg2 = Number(arg2.toString().replace('.', ''))
    }
  } else {
    arg1 = Number(arg1.toString().replace('.', ''))
    arg2 = Number(arg2.toString().replace('.', ''))
  }
  return (arg1 + arg2) / m
}

/**
 * 小数减法
 */
export const accSubtract = (arg1, arg2) => {
  var r1, r2, m, c
  try {
    r1 = arg1.toString().split('.')[1].length
  } catch (e) {
    r1 = 0
  }
  try {
    r2 = arg2.toString().split('.')[1].length
  } catch (e) {
    r2 = 0
  }
  c = Math.abs(r1 - r2)
  m = Math.pow(10, Math.max(r1, r2))
  if (c > 0) {
    var cm = Math.pow(10, c)
    if (r1 > r2) {
      arg1 = Number(arg1.toString().replace('.', ''))
      arg2 = Number(arg2.toString().replace('.', '')) * cm
    } else {
      arg1 = Number(arg1.toString().replace('.', '')) * cm
      arg2 = Number(arg2.toString().replace('.', ''))
    }
  } else {
    arg1 = Number(arg1.toString().replace('.', ''))
    arg2 = Number(arg2.toString().replace('.', ''))
  }
  return (arg1 - arg2) / m
}

/**
 * 小数乘法
 */
export const accMul = (arg1, arg2) => {
  var m = 0
  var s1 = arg1.toString()
  var s2 = arg2.toString()
  try { m += s1.split('.')[1].length } catch (e) {}
  try { m += s2.split('.')[1].length } catch (e) {}
  return Number(s1.replace('.', '')) * Number(s2.replace('.', '')) / Math.pow(10, m)
}