代码:
getSymbols("000300.ss",from="2009-01-01",to="2020-12-31")
错误:
Warning: 000300.ss download failed; trying again.
Error in getSymbols.yahoo(Symbols = "000300.ss", env = <environment>, :
Unable to import “000300.ss”.
argument "conn" is missing, with no default
请问这个是哪里出错了?我该如何解决呀?