getTime() {
      let today = new Date();
      let h = today.getHours();
      let m = today.getMinutes();
      let s = today.getSeconds();
      h = h < 10 ? "0" + h : h;
      m = m < 10 ? "0" + m : m;
      s = s < 10 ? "0" + s : s;
      let time = h + ":" + m + ":" + s;
      return time;
    },

赋值给变量并显示。

time = new Date();

var hh = time.getHours();
var mm = time.getMinutes();
var ss = time.getSeconds() 

document.getElementById("time").value = hh + ":" + mm + ":" + ss;

Try

new Date().toLocaleTimeString().replace("/.*(\d{2}:\d{2}:\d{2}).*/", "$1");

Or

new Date().toTimeString().split(" ")[0];

这对我来说很有效，但这取决于你点击Date()时得到的结果:

Date().slice(16,-12)

试试这个

new Date().toTimeString().slice(0, 8);

or

new Date().toTimeString().split(" ")[0];

它应该会起作用。

看看这些Date方法…

更大字符串- https://开发者.mozilla.org/en- us/web /javascrips/web/javascript/javascript / global_objects/date/愚蠢的字符串 totime弦- https://开发者.mozllla.org/en - us/docs/web/javascrips/web/javascript/com// global_objects/date/totimeststststststg