用javaScript制作日历

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 这是我做出来的最终效果，界面比较简单，以后有时间会稍作修改，把界面和功能做得更加完善。

html+css代码如下：

	
	
	



	

		

		上一月
		
		下一月	
		
		

			

				

					
日
					
一
					
二
					
三
					
四
					
五
					
六
				
			
			
		
	

js代码如下：

    var nowDate=new Date();
	var nowYear=nowDate.getFullYear();
	var nowMonth=nowDate.getMonth()+1;
	//var month=(nowMonth<10?"0"+momth:month);
	var text=document.getElementById("yearAndMon");
	text.innerText=nowYear+"年"+nowMonth+"月";
	var monthDays1=[31,29,31,30,31,30,31,31,30,31,30,31]; 
	var monthDays2=[31,28,31,30,31,30,31,31,30,31,30,31]
function becomeDate(nowYear,nowMonth){
	var dt=new Date(nowYear,nowMonth-1,1);
	var firstDay=dt.getDay();
	var table=document.getElementById("table1");
	var monthDays=isRunNian();
	var rows=5;
	var cols=7;
	var k=1;
	for(var i=1;i<=rows;i++){
		var tri=table.insertRow();
		for(var j=1;j<=7;j++){
			var tdi=tri.insertCell();
			if(i==1&&i*jmonthDays[nowMonth-1])
				break;
			tdi.innerHTML=k;
			k++;
		}
			}

		}
}

function lastMon(){
	table1.innerHTML="";
	var text=document.getElementById("yearAndMon");
	if(nowMonth>1)
		nowMonth=nowMonth-1;
	else{
		nowYear--;
		nowMonth=12;
	}
	text.innerText=nowYear+"年"+nowMonth+"月";
	becomeDate(nowYear,nowMonth);
}

function nextMon(){
	table1.innerHTML="";
	if(nowMonth<12)
		nowMonth=nowMonth+1;
	else{
		nowYear++;
		nowMonth=1;
	}
		var text=document.getElementById("yearAndMon");
		text.innerText=nowYear+"年"+nowMonth+"月";
		becomeDate(nowYear,nowMonth);
}

function isRunNian(){
	if((nowYear%4==0||nowYear%400==0)&&nowYear%100!=0)
		return monthDays1;
	else
		return monthDays2;
}
becomeDate(nowYear,nowMonth);

代码还有很多不足之处，大家可以提出改进的意见。