什么是Python第一个参数?系统argv[0]或系统argv[1]

根据 https://www.tutorialspoint.com/python/python_command_line_arguments.htm

first argument is always script name and it is also being counted in number of arguments.

sys.argv[0]

但是,当我阅读其他教程时,比如

https://www.cyberciti.biz/faq/python-command-line-arguments-argv-example/

上面说第一个论点是 sys.argv[1]

#!/usr/bin/python
__author__ = 'nixCraft'
import sys total = len(sys.argv)
cmdargs = str(sys.argv)
print ("The total numbers of args passed to the script: %d " % total)
print ("Args list: %s " % cmdargs)
# Pharsing args one by one
print ("Script name: %s" % str(sys.argv[0]))
print ("First argument: %s" % str(sys.argv[1]))
print ("Second argument: %s" % str(sys.argv[2]))

这尤其让那些刚刚开始学习编程和Python的人感到困惑。