lovecoding
/
W250913


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        var months = new Array(31,28,31,30,31,30,31,31,30,31,30,31);
        function IsLeapYear(y){
            return (y%4==0 && y%100!=0) || y % 400 == 0
        }

        function DayOfYear(y,m,d){
            var count = 0;
            if(IsLeapYear(y)){
                months[1] = 29
            }
            for(var i=0;i<m-1;i++){
                count += months[i];
            }
            console.log(count+d);
        }
        DayOfYear(2026,2,12);
    </script>
</body>
</html>