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//extern_CPP.h
#ifndef EXTERN_CPP_H
#define EXTERN_CPP_H
#include <string>
class FileSystem
{
string filename;//错误提示:string does not name a type
public:
FileSystem(string _filename);//错误提示:expected ')' before "_filename"
void printFileName();
};
#endif // EXTERN_CPP_H
//extern_CPP.cpp
#include "extern_CPP.h"
#include <stdlib.h>
#include <iostream>
#include <string>
using namespace std;
FileSystem::FileSystem(string _filename):filename(_filename)
{}
void FileSystem::printFileName()
{
cout<<filename<<endl;
}
int main()
{
FileSystem fs("filename");
fs.printFileName();
system("pause");
return 0;
}
请问啥错误?
//extern_CPP.h
#ifndef EXTERN_CPP_H
#define EXTERN_CPP_H
#include <string>
using std::string; //这样。。。
class FileSystem
{
string filename;//错误提示:string does not name a type
public:
FileSystem(string _filename);//错误提示:expected ')' before "_filename"
void printFileName();
};