运行 ID: 11222

Main.cc:3:5: error: cannot declare ‘::main’ to be a global variable
 int main
     ^~~~
Main.cc:5:36: error: expected ‘}’ before ‘;’ token
     cout<<"my name is frank."<::__ostream_type {aka std::basic_ostream}’ to ‘int’ [-fpermissive]
     cout<<"my name is frank."<::operator bool() const [with _CharT = char; _Traits = std::char_traits] 
       explicit operator bool() const
                ^~~~~~~~
/usr/include/c++/7/bits/basic_ios.h:117:16: note:   return type ‘bool’ of explicit conversion function cannot be converted to ‘int’ with a qualification conversion
Main.cc:6:5: error: expected unqualified-id before ‘return’
     return o;
     ^~~~~~
Main.cc:7:1: error: expected declaration before ‘}’ token
 }
 ^