年月日借位相减,输入两个时间点的 年月日

  

   

    

     

    
    

     

      /**
     
    
   

    

     

    
    

     

       * 计算两个日期的时长,返回x年x月x日,传入时间戳
     
    
   

    

     

    
    

     

       */
     
    
   

    

     

    
    

     

      export function getDateDurations (startDate, endDate) {
     
    
   

    

     

    
    

     
  let startYear = parseInt(moment(startDate).format('YYYY'))
     
    
   

    

     

    
    

     
  let startMonth = parseInt(moment(startDate).format('MM'))
     
    
   

    

     

    
    

     
  let startDay = parseInt(moment(startDate).format('DD'))
     
    
   

    

     

    
    

     
  let endYear = parseInt(moment(endDate).format('YYYY'))
     
    
   

    

     

    
    

     
  let endMonth = parseInt(moment(endDate).format('MM'))
     
    
   

    

     

    
    

     
  let endDay = parseInt(moment(endDate).format('DD')) + 1
     
    
   

    

     

    
    

     
  let currentMonthDays = 31
     
    
   

    

     

    
    

     
  if ([1,3,4,7,8,10,12].includes(startMonth)) {
     
    
   

    

     

    
    

     

          currentMonthDays = 31
     
    
   

    

     

    
    

     

        } else if ([4,6,9,11].includes(startMonth)) {
     
    
   

    

     

    
    

     

          currentMonthDays = 30
     
    
   

    

     

    
    

     

        } else if (startMonth === 2) {
     
    
   

    

     

    
    

     

          currentMonthDays = 28
     
    
   

    

     

    
    

     

        }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
  let monthJ1 = false // 是否需要向上级月份借位
     
    
   

    

     

    
    

     
  let yearJ1 = false // 是否需要向上级年份借位
     
    
   

    

     

    
    

     
  let mDay = endDay - startDay
     
    
   

    

     

    
    

     
  let mMonth = endMonth - startMonth
     
    
   

    

     

    
    

     
  let mYear = endYear - startYear
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
  if (mDay < 0) {
     
    
   

    

     

    
    

     

          monthJ1 = true
     
    
   

    

     

    
    

     

          mDay = mDay + currentMonthDays
     
    
   

    

     

    
    

     

        }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
  if (monthJ1) {
     
    
   

    

     

    
    

     

          mMonth = mMonth - 1
     
    
   

    

     

    
    

     

        }
     
    
   

    

     

    
    

     
  if (mMonth < 0) {
     
    
   

    

     

    
    

     

          yearJ1 = true
     
    
   

    

     

    
    

     

          mMonth = mMonth + 12
     
    
   

    

     

    
    

     

        }
     
    
   

    

     

    
    

     
  if (mYear > 0) {
     
    
   

    

     

    
    

     
    if (yearJ1) {
     
    
   

    

     

    
    

     

            mYear = mYear - 1
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     

        }
     
    
   

    

     

    
    

     
  return (mYear ? mYear + '年' : '') + (mMonth ? mMonth + '月' : '') + (mDay ? mDay + '日' : '')
     
    
   

    

     

    
    

     

      }
     
    
  
 

文章来源: fizzz.blog.csdn.net，作者：拿我格子衫来，版权归原作者所有，如需转载，请联系作者。

原文链接：fizzz.blog.csdn.net/article/details/103263481