lovecoding
/
W260426


			
				
					
						
						
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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>
        // 1234
        var count = 0;
        for(var i = 1000;i<10000;i++){
            var A = Math.floor(i/1000);
            var B = Math.floor(i/100)%10;
            var C = Math.floor(i/10)%10;
            if(i%13 == 0 && B + C == A){
                document.write(i+"&nbsp;");
                count++;
            }
        }
        document.write("<br>");
        document.write("满足条件的四位数有"+count+"个");
    </script>
</body>
</html>