使用js打印日历在控制台

1.引入jquery.js
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>打印日历</title>
    <link rel="stylesheet" href="../css/test03.css" type="text/css" />

</head>

<body>
    <input type="text" id="years" onblur="doval()" />年
    <select id="selectid">
        <option value="1">1</option>
        <option value="2">2</option>
        <option value="3">3</option>
        <option value="4">4</option>
        <option value="5">5</option>
        <option value="6">6</option>
        <option value="7">7</option>
        <option value="8">8</option>
        <option value="9">9</option>
        <option value="10">10</option>
        <option value="11">11</option>
        <option value="12">12</option>
    </select>月
    <button onclick="prints()">打印</button>
    <script src="../js/jquery-1.12.4.min.js" type="text/javascript"></script>
    <script type="text/javascript">
        $(function () {
            var myDate = new Date();
            var year = myDate.getFullYear(); //获取完整的年份(4位,1970-????)
            var mon = myDate.getMonth(); //获取当前月份(0-11,0代表1月)
            $("#selectid").val(mon + 1);
            $("#years").val(year);
        })

        function doval() {
            var years = $("#years");
            var inpVal = years.val();
            var reg = /^[1-9]\d*$/gi;
            if (reg.test(inpVal) && inpVal.length == 4) {
                console.log(inpVal);

            } else {
                console.log('请输入非0开头的四位正整数');
                years.val("");
            }
        }

        function prints() { //点击时获取年月值，打印出结果
            var dat1 = $("#selectid").val();
            var dat2 = $("#years").val();
            if (dat2 > 0) { //开始打印的代码
                console.log(dat2 + "年" + dat1 + "月 ");
                var dateObj = new Date(dat2, dat1 - 1, 1); //自定义日期的时间
                //获得这一天是周几
                var week = dateObj.getDay(); //获取当前星期X(0-6,0代表星期天)
                var arr = ["日", "一", "二", "三", "四", "五", "六"];
                var s = week - 0; //计算当前月份一号距离周日的日期
                for (var i = 0; i < s; i++) {
                    arr.push(" ");
                }
             //   console.log(arr)
                //获取当前月最后一天
                var lastday = new Date(dat2, dat1, 0).getDate();
                //console.log(lastday)
                for (var i = 0; i < lastday; i++) {
                    arr.push(i + 1);
                }
            //  console.log(arr)
                var str = "";
                for (var i = 0; i<  arr.length; i++) {
                    if(arr[i]<10&&i>6){//给0-9之间的日期加长
                              arr[i]=" "+arr[i];
                         }
                   str = str+" " +arr[i]+" ";
                   if((i+1)%7==0){//七个值打印一次
                    console.log('%c'+str,'color:green;font-size:15px;width:70px ');
                   // str = arr[i]+"  " ;
                   str="";
                   }
                }
                console.log('%c'+str,'color:green;font-size:15px;width:70px ');
               
                }
             else {
                console.log("缺值无法打印")
            }
        }
    </script>


</body>

</html>
使用js打印日历在控制台

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