时间返回负数

import time

# 获取当前时间戳
current_timestamp = int(time.time())
print(current_timestamp)  # 应该是一个正整数

from datetime import datetime, timezone

# 获取当前UTC时间
current_utc_time = datetime.now(timezone.utc)
print(current_utc_time)

# 转换为本地时间
local_time = current_utc_time.astimezone()
print(local_time)

from datetime import datetime

# 定义两个时间点
time1 = datetime(2023, 1, 1)
time2 = datetime(2023, 1, 2)

# 计算时间差
time_diff = time2 - time1
print(time_diff)  # 应该是一个正数

def validate_timestamp(timestamp):
    if timestamp < 0:
        raise ValueError("Timestamp cannot be negative")
    return timestamp

# 示例
try:
    validate_timestamp(-1)
except ValueError as e:
    print(e)  # 输出: Timestamp cannot be negative