c++ - C2146 失踪;在 Visual Studio 2010 中

Question

当我尝试在 VS 2010 中编译时出现以下错误。它还提示字符串未定义，这是没有意义的，因为我清楚地包含了它。我明白这些错误的含义，但它们似乎没有任何意义:

1>c:\users\jon\documents\visual studio 2010\projects\project 2\project 2\userfactory.cpp(11): error C2146: syntax error : missing ';' before identifier 'profession' 1>c:\users\jon\documents\visual studio 2010\projects\project 2\project 2\userfactory.cpp(11): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int 1>c:\users\jon\documents\visual studio 2010\projects\project 2\project 2\userfactory.cpp(11): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int 1>c:\users\jon\documents\visual studio 2010\projects\project 2\project 2\userfactory.cpp(16): error C2143: syntax error : missing ';' before '<' 1>c:\users\jon\documents\visual studio 2010\projects\project 2\project 2\userfactory.cpp(16): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int 1>c:\users\jon\documents\visual studio 2010\projects\project 2\project 2\userfactory.cpp(16): error C2238: unexpected token(s) preceding ';' 1>c:\users\jon\documents\visual studio 2010\projects\project 2\project 2\userfactory.cpp(23): error C2061: syntax error : identifier 'string' 1>c:\users\jon\documents\visual studio 2010\projects\project 2\project 2\userfactory.cpp(19): error C2061: syntax error : identifier 'map'

这是我的代码:

#include "objbase.h" //I found this recommendation while googling, but had the errors prior to adding this.
#include <string>
#include <map>
#include <utility>

class UserFactory {
public:
    class User {
        char gender;
        int id;
    string profession;// line 11
    int zip;
    friend class UserFactory;
};
private:
map<int,User*>* map;

public:
UserFactory() : map(new map<int,User*>()) { }

virtual ~UserFactory(void);

void process(string s) {
    //user id | age | gender | occupation | zip code

}
};

在我扯掉头发之前，我们将不胜感激!

谢谢!

Answer 1

string 是 std 命名空间的一部分，因此您必须将其称为 std::string。这同样适用于 map 。