将字符串与数字连接并转换为日期时间

import datetime

date_str = "2022-01-01"
time_str = "08:30"
datetime_str = date_str + " " + time_str

datetime_obj = datetime.datetime.strptime(datetime_str, "%Y-%m-%d %H:%M")
print(datetime_obj)

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

String dateStr = "2022-01-01";
String timeStr = "08:30";
String dateTimeStr = dateStr + " " + timeStr;

DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm");
LocalDateTime dateTimeObj = LocalDateTime.parse(dateTimeStr, formatter);
System.out.println(dateTimeObj);

let dateStr = "2022-01-01";
let timeStr = "08:30";
let dateTimeStr = dateStr + " " + timeStr;

let dateTimeObj = new Date(dateTimeStr);
console.log(dateTimeObj);