sys报错 IndexError: list index out of range

Question

Traceback (most recent call last):  File "C:\Users\admin\Desktop\DBC23.py", line 69, in <module>    source_acctid=sys.argv[1]IndexError: list index out of range>>> 用sys写写银行转账例子错误if __name__=="__main__":    source_acctid=sys.argv[1]    target_acctid=sys.argv[2]    money =sys.argv[3]    conn =pymysql.connec‘