如何在python上生成唯一的数字对

import uuid

def generate_unique_number_pair():
    unique_id = uuid.uuid4().int
    a = unique_id & 0xFFFFFFFF
    b = (unique_id >> 32) & 0xFFFFFFFF
    return (a, b)

# 示例
print(generate_unique_number_pair())

import time
import random

def generate_unique_number_pair():
    timestamp = int(time.time() * 1000)  # 获取当前时间戳（毫秒级）
    random_num = random.randint(0, 1000000)
    a = timestamp & 0xFFFFFFFF
    b = (timestamp >> 32) ^ random_num
    return (a, b)

# 示例
print(generate_unique_number_pair())

import sqlite3

def generate_unique_number_pair():
    conn = sqlite3.connect(':memory:')
    cursor = conn.cursor()
    cursor.execute('CREATE TABLE unique_pairs (id INTEGER PRIMARY KEY AUTOINCREMENT)')
    cursor.execute('INSERT INTO unique_pairs DEFAULT VALUES')
    conn.commit()
    unique_id = cursor.lastrowid
    a = unique_id & 0xFFFFFFFF
    b = (unique_id >> 32) & 0xFFFFFFFF
    conn.close()
    return (a, b)

# 示例
print(generate_unique_number_pair())

import hashlib

def generate_unique_number_pair(input_str):
    hash_object = hashlib.sha256(input_str.encode())
    hex_dig = hash_object.hexdigest()
    a = int(hex_dig[:8], 16)
    b = int(hex_dig[8:16], 16)
    return (a, b)

# 示例
print(generate_unique_number_pair("unique_string_123"))