C++:‘std::ostream& String::operator<<(std::ostream&, const String&)’ must take exactly one argument
C++:‘std::ostream&String::operator<<(std::ostream&,constString&)’musttakeexactlyoneargument标签:C++编译错误by小威威以下是我编译某些源文件是出现的问题:错误信息如下:‘std::ostream&String::operator<<(std::ostream&,constString&)’musttake