字符串类型的标准格式时间，转换成数字类型的时间戳

代码

import time

s = '2021-06-05 16:57:44'

s_timestamp = time.mktime(time.strptime(s, "%Y-%m-%d %H:%M:%S"))
print(s_timestamp, type(s_timestamp))

current_timestamp = time.time()
print(current_timestamp, type(current_timestamp))

输出

1622883464.0 <class 'float'>
1622883797.4695797 <class 'float'>