missing template arguments before异常解决

target.cpp:10:12: error: missing template arguments before 'msg'
      vector msg {"people", "cat", "dog", "chair", "cup"};
             ^~~
 target.cpp:12:31: error: 'msg' was not declared in this scope
      for (const string& word : msg) 
正确的写法：
vector msg {"people", "cat", "dog", "chair", "cup"};
改为：
vector<string> msg {"people", "cat", "dog", "chair", "cup"};