js计算日期所差年数

var a6101=jQuery('#A6101').val();

var a6102=jQuery('#A6102').val();

if (a6101.length >= 4 && a6102.length >= 4) {

var month = (a6102.substr(0, 4) - a6101.substr(0, 4)) * 12 + (a6102.substr(4, 2) - a6101.substr(4, 2));

var year = Math.floor(month / 12);

var month2 = month % 12;

if (month2 > 0 && month2 <= 6)

year = year + 0.5;

else if(month2 > 6)

year = year + 1;

jQuery('#A6104').val(year);

将整数转换成一位小数

a0133 = parseInt(a0133) + parseFloat(Math.round(xmonth * 10) / 100);