時間戳處理的幾種方式：

var date = new Date()
var t = time.toLocaleTimeString()
console.log(t)
輸出：下午2:09:20
var t = (new Date()).toLocaleTimeString()
console.log(t)
輸出：下午2:11:13
var t = (new Date()).toDateString()
console.log(t)
輸出：Tue Jul 06 2021
var t = (new Date()).toLocaleDateString()
console.log(t)
輸出：2021/7/6
var t = (new Date()).toTimeString()
console.log(t)
輸出：14:18:22 GMT+0800 (中國標準時間)
var t = (new Date()).toLocaleString()
console.log(t)
輸出：2021/7/6下午2:19:24