foo.cc:5:15: error: stray '\' in program
     printf("3"\n"9---站台"\n"4"\n");
               ^
foo.cc:5:29: error: stray '\' in program
     printf("3"\n"9---站台"\n"4"\n");
                             ^
foo.cc:5:34: error: stray '\' in program
     printf("3"\n"9---站台"\n"4"\n");
                                  ^
foo.cc:5:36: warning: missing terminating " character
     printf("3"\n"9---站台"\n"4"\n");
                                    ^
foo.cc:5:36: error: missing terminating " character
     printf("3"\n"9---站台"\n"4"\n");
                                    ^~~
foo.cc: In function 'int main()':
foo.cc:5:16: error: expected ')' before 'n'
     printf("3"\n"9---站台"\n"4"\n");
                ^

自豪的采用jd5进行评测(github.com/masnn/jd5)