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obj_year.innerText=parseInt(num_year)+1; //年数增加
displayCalendar(obj_month.innerText-1,obj_year.innerText);
}
function plusyear()
{
var obj_year=document.getElementById("year");
var obj_month=document.getElementById("month");
var num_year=obj_year.innerText;
obj_year.innerText=parseInt(num_year)-1; //年数减少
displayCalendar(obj_month.innerText-1,obj_year.innerText);
}
function addmonth()
{
var obj_month=document.getElementById("month");
var obj_year=document.getElementById("year");
if(parseInt(obj_month.innerText)>=12) //月数增加到12时，年数相应增加1，月数从1开始
{
obj_month.innerText="0";
obj_year=document.getElementById("year");
var num_year=obj_year.innerText;
obj_year.innerText=parseInt(num_year)+1;
}
var num_month=obj_month.innerText;
obj_month.innerText=parseInt(num_month)+1; //月数增加
displayCalendar(obj_month.innerText-1,obj_year.innerText);
}
function plusmonth()
{
var obj_month=document.getElementById("month");
var obj_year=document.getElementById("year");
if(parseInt(obj_month.innerText)<=1) //月数减少到1时，年数相应减少1，月数从12开始
{
obj_month.innerText="13";
obj_year=document.getElementById("year");
var num_year=obj_year.innerText;
obj_year.innerText=parseInt(num_year)-1;
}
var num_month=obj_month.innerText;
obj_month.innerText=parseInt(num_month)-1; //月数减少
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