/** * 时间相加处理函数 * @param date 需要计算的时间(xxxx-xx-xx) * @param plusDays 要加的天数(整数) */ function calcuDate(date, plusDays) { var dateArray = date.split("-"); var year = +dateArray[0]; var month = +dateArray[1]; var day = +dateArray[2]; var oriDay = day; var secondMonthDays = ((year%4 === 0 && year%100 !== 0) || year%400 === 0) ? 29 : 28; while(plusDays>0) { oriDay = day day += plusDays; switch(month) { case 4: case 6: case 9: case 11: if(day > 30) { plusDays -= (30-oriDay)+1; month++; day = 1; } else { plusDays = 0; } break; case 2: if(day > secondMonthDays) { plusDays -= (secondMonthDays-oriDay)+1; month++; day = 1; } else { plusDays = 0; } break; default: if(day > 31) { plusDays -= (31-oriDay)+1; day = 1; month++; } else { plusDays = 0; } } if(month>12) { month = 1; year++; } } return createTimeString(year, month, day); }
当然，除了这种方式之外，还有其他的，类似于new Date传参之类的解决方案，这也算是一种吧