python随机生成一个符合bigquery的timestamp类型的字符串

可以使用Python的datetime和random模块来生成符合bigquery的timestamp类型的字符串：

import datetime
import random

# 生成一个随机的日期
year = random.randint(2000, 2021)
month = random.randint(1, 12)
day = random.randint(1, 28)
hour = random.randint(0, 23)
minute = random.randint(0, 59)
second = random.randint(0, 59)
microsecond = random.randint(0, 999999)

# 构造datetime对象
dt = datetime.datetime(year, month, day, hour, minute, second, microsecond)

# 转换为符合bigquery的timestamp类型的字符串
timestamp_str = dt.strftime('%Y-%m-%d %H:%M:%S.%f')

# 打印结果
print(timestamp_str)

输出示例：

2013-07-12 23:05:45.245678
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