将字符串转换为date对象并返回

var dateString = "2022-01-01";
var dateObject = new Date(dateString);

import datetime

date_string = "2022-01-01"
date_object = datetime.datetime.strptime(date_string, "%Y-%m-%d").date()

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

String dateString = "2022-01-01";
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
Date dateObject;
try {
    dateObject = dateFormat.parse(dateString);
} catch (ParseException e) {
    e.printStackTrace();
}