import datetime
import time


# 黄海定义的输出信息的办法，带当前时间
def logInfo(msg):
    i = datetime.datetime.now()
    print(" %s            %s" % (i, msg))


if __name__ == '__main__':
    cnt = 0
    while True:
        logInfo("我还活着！")
        time.sleep(1)
        cnt = cnt + 1
        if cnt == 30:
            break