/in/foo.cc: In function 'int main()':
/in/foo.cc:8:8: error: unable to find string literal operator 'operator""cout' with 'const char [7]', 'long unsigned int' arguments
  if(a=="火柴"cout<<"针"
        ^~~~~~~~~~~~
/in/foo.cc:9:2: error: expected ')' before 'if'
  if(a=="针")cout<<"火柴"
  ^~