使用GetLogicalDrives获取卷标

#include<stdio.h>
#include<windows.h>

int main()
{
    DWORD dwLogical= GetLogicalDrives();
    char c='A';
    int count=;
    while(dwLogical)
    {
        if(dwLogical & 0x01)
        {
            printf("%c\n",c);
            count++;
        }

        dwLogical>>=;
        c++;
    }

    printf("总共有 %d 个盘。\n",count);
    return ;
}