Python将字符串时间00:01:03转化秒数

 使用 split() 切片方法，根据切片值进行分割：时、分、秒 数据

def split_time(time_str = None):
    line = time_str.split(":")
    seconds = int(line[0])*3600 + int(line[1])*60 + int(line[2])
    print(seconds)
    return seconds

if __name__ == '__main__':
    split_time("00:01:13")    #73秒

 执行结果：

C:\Python\Python37\python3.exe D:/time/test2.py
73

Process finished with exit code 0