That being said, you really should not be using system() like this. Use Win32 APIs instead, namely CoCreateGuid(), StringFromGUID2(), RegCreateKeyEx(), and RegSetValueEx(), eg:
#include <windows.h>
#include <objbase.h>
GUID guid;
HRESULT hRes = CoCreateGuid(&guid);
if (FAILED(hRes)) ...
WCHAR szGuid[40];
int len = StringFromGUID2(&guid, szGuid, 40);
if (len == 0) ...
HKEY hKey;
LSTATUS lRes = RegCreateKeyExW(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Microsoft\\Cryptography", 0, NULL, REG_OPTION_NON_VOLATILE, KEY_SET_VALUE, NULL, &hKey, NULL);
if (lRes != ERROR_SUCCESS) ...
lRes = RegSetValueExW(hKey, L"MachineGuid", 0, REG_SZ, (BYTE*)szGuid, len*sizeof(WCHAR));
if (lRes != ERROR_SUCCESS) ...
RegCloseKey(hKey);
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在C和C ++中，您需要逃脱
\字符时使用字符串/字符字面的字符，例如：话虽这么说，您确实不应该使用
system（）>像这样。代替使用win32 API，即cocreateGuid（），string> string> string> string> string> regcreatekeyex（） ，例如：In C and C++, you need to escape the
\character when used in a string/character literal, eg:That being said, you really should not be using
system()like this. Use Win32 APIs instead, namelyCoCreateGuid(),StringFromGUID2(),RegCreateKeyEx(), andRegSetValueEx(), eg: