自定义时间格式(YYYY-MM-DD HH:mm:ss 星期X)

<script>
function format(newDate) {
            var day = newDate.getDay()
            var y = newDate.getFullYear()
            var m = (newDate.getMonth() + 1) < 10 ? "0" + (newDate.getMonth() + 1) : (newDate.getMonth() + 1)
            var d = newDate.getDate() < 10 ? "0" + newDate.getDate() : newDate.getDate()
            var h = newDate.getHours() < 10 ? "0" + newDate.getHours() : newDate.getHours()
            var min = newDate.getMinutes() < 10 ? "0" + newDate.getMinutes() : newDate.getMinutes()
            var s = newDate.getSeconds() < 10 ? "0" + newDate.getSeconds() : newDate.getSeconds()
            var dict = {
                1: "一",
                2: "二",
                3: "三",
                4: "四",
                5: "五",
                6: "六",
                0: "天",
            }
            //var week=["日","一","二","三","四","五","六"]
            return y + "-" + m + "-" + d + " " + h + ":" + min + ":" + s + " 星期" + dict[day]
        }
        var newDate = new Date()
        console.log(format(newDate))
</script>

注意点:

一、date.getDay()的结果为数字0-6，0对应星期天、1-6对应星期一到星期六

将数字转化为中文,有两种方法:

(1)字典 var dict = {
                1: "一",
                2: "二",
                3: "三",
                4: "四",
                5: "五",
                6: "六",
                0: "天",
            }

使用：dict[date.getDay()]

(2)数组 var week=["日","一","二","三","四","五","六"]

使用：week[date.getDay()]

二、date.getMonth()得到的月份+1才为真实月份

打印结果