C#调用API函数
https://blog.csdn.net/weizhiai12/article/details/7107713
https://blog.csdn.net/ABC13222880223/article/details/89916624
https://www.cnblogs.com/benwu/p/4132026.html
class apiFun
{
[DllImport("kernel32.dll")]
public static extern int GetPrivateProfileString(string section, string key, string def, byte[] retVal, int size, string filePath);
}