获取计算机名

 1 #include <string>
 2 #include <iostream>
 3 #include <stdlib.h>
 4 #include <time.h> 
 5 #include <algorithm>
 6 
 7 using namespace std;
 8 int main()
 9 {
10     char* szComputerNameTemp;
11     size_t sz = 0;
12     errno_t  err = _dupenv_s(&szComputerNameTemp, &sz, "COMPUTERNAME");
13     
14     string strComputerName = "";
15     strComputerName = szComputerNameTemp;
16     transform(strComputerName.begin(), strComputerName.end(), strComputerName.begin(), ::toupper);//转化为大写 
17     
18     cout << strComputerName << endl;
19     
20     cin.get();
21     return 0;
22 }