if __name__ == '__main__':
# 时间戳
import time
seconds = time.time()
# 时间戳转换为字符串
print(time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(seconds)))
# 字符串转换为时间戳
print(time.mktime(time.strptime("2018-08-07", "%Y-%m-%d")))
if len(df) > 0:
# 字符串转换为时间戳
x = list(df['日期'])
x1 = [time.mktime(time.strptime(c, "%Y-%m-%d")) for c in x]
df['日期时间戳'] = x1
df.sort_values(by='日期时间戳', inplace=True, ascending=True)