带有用户定义输入的c++ Robocopy

C++ Robocopy with userdefined inputs

本文关键字：c++ Robocopy 输入 定义 用户      更新时间：2023-10-16

我是c++的初学者，目前正在尝试编写一个小程序来帮助网络设备的自动复制备份，到目前为止，我已经提出了以下代码，但是当我试图编译时，我得到以下错误:

31没有匹配'operator<<' in '"ROBOCOPY//" <<oldname '

我得到相同的错误重复所有行使用robocopy，任何帮助将不胜感激。谢谢所有的

#include <iostream>
#include <cstdlib>
using namespace std;

int main()
{
      string oldname;
      string newname;
      string userid;  
      char response;        

      cout<<"Please input old device name eg XXXXXXn";
      cin>> oldname;
      cout<<"Please input new device name eg XXXXXXn";
      cin>> newname;
      cout<<"Please input userid eg SP12345n";
      cin>> userid;                  
      cout<<"Does your current device contain a D: drive? Y or N?";
      cin>> response;
                  if (response == 'Y')
                  {
                   std::system("ROBOCOPY //"<<oldname<<"/c$/Users/"<<userid<<"/Desktop //"<<newname<<"/C$/Users/"<<userid<<"/Desktop /MIR /w:0 /r:0");
                   std::system("ROBOCOPY //"<<oldname<<"/c$/Users/"<<userid<<"/Favorites //"<<newname<<"/C$/Users/"<<userid<<"/Favorites /MIR /w:0 /r:0");
                   std::system("ROBOCOPY //"<<oldname<<"/c$/Users/"<<userid<<"/My Documents //"<<newname<<"/C$/Users/"<<userid<<"/My Documents /MIR /w:0 /r:0");
                   std::system("ROBOCOPY //"<<oldname<<"/d$ //"<<newname<<"/C$/Users/"<<userid<<"/Desktop/D backup /MIR /w:0 /r:0";
                       }        
                  else if (response == 'N')
                  {
                       std::system("ROBOCOPY //"<<oldname<<"/c$/Users/"<<userid<<"/Desktop //"<<newname<<"/C$/Users/"<<userid<<"/Desktop /MIR /w:0 /r:0;
                       std::system("ROBOCOPY //"<<oldname<<"/c$/Users/"<<userid<<"/Favorites //"<<newname<<"/C$/Users/"<<userid<<"/Favorites /MIR /w:0 /r:0;
                       std::system("ROBOCOPY //"<<oldname<<"/c$/Users/"<<userid<<"/My Documents //"<<newname<<"/C$/Users/"<<userid<<"/My Documents /MIR /w:0 /r:0;
                       }
                system("pause");          
}

首先，这个简单的语句不起作用:

std::string str;
system(str); //<== expecting C-string

因为system需要一个以空结尾的C-string，而std::string不需要。如果添加text:

，情况就更糟了
system("text" + str);

编译器不知道该怎么处理。

其次，system不能正常传递命令行参数。您需要CreateProcess或ShellExecuteEx

您可能还必须传递应用程序的完整路径。例子:

#include <iostream>
#include <string>
#include <sstream>
#include <Windows.h>
void foo(std::string userid, std::string oldname, std::string newname)
{
    std::stringstream ss;
    ss  << "c:\Program Files (x86)\Full Path\Robocopy.exe" 
        << " /c:\users\" << userid << "\Desktop\" << oldname 
        << " /c:\users\" << userid << "\Desktop\" << newname
        << " /MIR /w:0 /r:0";
    std::string commandLine = ss.str();
    //examine the commandline!
    std::cout << commandLine << "n";
    STARTUPINFOA si;
    PROCESS_INFORMATION pi;
    memset(&si, 0, sizeof(si));
    si.cb = sizeof(si);
    memset(&pi, 0, sizeof(pi));
    char *buf = _strdup(commandLine.c_str());
    CreateProcessA(0, buf, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi);
    free(buf);
}
int main()
{
    foo("x", "y", "z");
    return 0;
}
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