以指定格式返回日期时间

const currentDate = new Date();
const formattedDate = currentDate.toISOString().replace('T', ' ').substring(0, 19);
console.log(formattedDate); // 输出类似 "2023-10-05 14:30:00"

from datetime import datetime

current_date = datetime.now()
formatted_date = current_date.strftime('%Y-%m-%d %H:%M:%S')
print(formatted_date)  # 输出类似 "2023-10-05 14:30:00"

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

public class Main {
    public static void main(String[] args) {
        LocalDateTime currentDateTime = LocalDateTime.now();
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        String formattedDate = currentDateTime.format(formatter);
        System.out.println(formattedDate);  // 输出类似 "2023-10-05 14:30:00"
    }
}