Algorithm-JS implementation of flat leap year judgment

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<script type="text/javascript">
			var year = prompt('请输入年份');
			if(year % 4 == 0 && year % 100 != 0 || year % 400 == 0){
    
    
				alert(year + '是闰年');
			}else{
    
    
				alert(year + '是平年');
			}
		</script>

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Origin blog.csdn.net/qq_41685741/article/details/114667714