JavaScript中判断当前年是否为闰年

Posted 2023-02-18 薛千凝

var mouth =2;
var year =2022;
switch (mouth)
    case 1: case 3: case 5: case 7: case 8:case 10: case 12:
        console.log("31天");break;
    
    case 4: case 6: case 9: case 11:
        console.log("30天")
    
    case 2:
        if((year%4 === 0 && year %100 !==0)||(year %400 ===0))
            console.log("29天")
    else
        console.log("28天")
        break;