您还可以利用DateAPI 获得相同的结果,如果您的要求更改为更复杂的与日期相关的操作,那么在将来有时会更清晰且更容易扩展:var dateAndTime = "2020-05-18T10:11:08Z";var dateAndTimeObject = new Date(dateAndTime);var date = dateAndTimeObject.getFullYear() + "-" + (dateAndTimeObject.getMonth() + 1) + "-" + dateAndTimeObject.getDate(); // add 1 to getMonth() result to change from month index to proper numerical month representationconsole.log(date);