获取日期和时间的时间戳

import time

# 获取秒级时间戳
timestamp_seconds = int(time.time())
print("秒级时间戳:", timestamp_seconds)

# 获取毫秒级时间戳
timestamp_milliseconds = int(time.time() * 1000)
print("毫秒级时间戳:", timestamp_milliseconds)

// 获取毫秒级时间戳
let timestampMilliseconds = Date.now();
console.log("毫秒级时间戳:", timestampMilliseconds);

// 获取秒级时间戳
let timestampSeconds = Math.floor(timestampMilliseconds / 1000);
console.log("秒级时间戳:", timestampSeconds);

import java.util.Date;

public class TimestampExample {
    public static void main(String[] args) {
        // 获取毫秒级时间戳
        long timestampMilliseconds = new Date().getTime();
        System.out.println("毫秒级时间戳: " + timestampMilliseconds);

        // 获取秒级时间戳
        long timestampSeconds = timestampMilliseconds / 1000;
        System.out.println("秒级时间戳: " + timestampSeconds);
    }
}