无法将参数 '1' 的 'std::string {aka std::basic_string}' 转换为 'const char*' 到 'int system(const char*) [重复]

Question

我有以下代码可以作为文件夹锁进行刺激：

#include<iostream>
#include<conio.h>
#include<windows.h>
#include<string>
#include<fstream>
#include<process.h>
#define max 100

using namespace std;

struct folder_all{
       std::string name;
       std::string location;
       };

int main(){
     folder_all folder[max];
     int n;

     cout<<"\n\n\t\t\tFolder Locker"<<endl;

if (std::ifstream("data"))
{

cout<<"\n\n\tYour Folders are safe with us"<<endl;
cout<<"Enter your password to unlock(Password will not be visible): ";

HANDLE inHandle = GetStdHandle(STD_INPUT_HANDLE);
DWORD mode;
GetConsoleMode(inHandle, &mode); 
SetConsoleMode(inHandle, mode & ~ENABLE_ECHO_INPUT);

std::string inpass;
cin>>inpass;

SetConsoleMode(inHandle, mode);

}
else{
     cout<<"\nNo. of folders to be locked: ";
     cin>>n;
HANDLE inHandle = GetStdHandle(STD_INPUT_HANDLE);
DWORD mode; 
GetConsoleMode(inHandle, &mode); 
SetConsoleMode(inHandle, mode & ~ENABLE_ECHO_INPUT);

//read the password
std::string password;
cout<<"\nEnter the password(password will not be visible): ";

cin>>password; 

/
SetConsoleMode(inHandle, mode); 
cout<<"\n\n"<<endl;
     for(int i=0; i<n; i++){
            cout<<"Enter folder "<<i+1<<" details:"<<endl<<endl;
            cout<<"Folder Name: ";
            cin>>folder[i].name;
            cout<<"Folder Location: "<<endl<<"\tEnter in following format 'Drivelabel://parent-folder/child-folder/folder'"<<endl;
            cout<<"\tfor example C://desktop/pics/your-folder"<<endl;
            cin>>folder[i].location;
}

 std::ofstream o("data");

      o <<password<<std::endl;
      for(int j=0; j<n; j++){
        o<<folder[j].location<<std::endl;
      }
system("attrib +h +s +r data");

std::string fold;

for(int k=0; k<n; k++){
       std::string f = folder[k].location ;
   fold = "attrib +h +s +r " + f + " ";
    system(fold); //this line gives me a error
}
cout<<"\nYour folder/s have been locked"<<endl;
cout<<"\nThis application will now exit"<<endl;
exit(0);

  }
}

代码要求用户输入密码，然后将其保存在文件数据中并隐藏文件。当用户输入要锁定的文件夹的位置时，它也会隐藏它。但对于 1 个错误，它无法正常工作 错误是：

main.cpp|79|error: 无法将参数 '1' 的 'std::string {aka std::basic_string}' 转换为 'const char*' 到 'int system(const char*)'|

如何解决？

Answer 1

使用c_str() 方法：

system(fold.c_str());