/in/foo.cc:1:1: error: stray '\347' in program
 给v
 ^
/in/foo.cc:1:2: error: stray '\273' in program
 给v
  ^
/in/foo.cc:1:3: error: stray '\231' in program
 给v
   ^
/in/foo.cc:1:4: error: 'v' does not name a type
 给v
    ^