窗体desgin的属性：MaxMizeBox:No      MinMizeBox:No    然后

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1、

public void run()

{

    #winapi

    super();

    winapi::ShowWindow(element.hWnd(),#SW_MAXIMIZE);

}

2、

public void run()

{

#define.SC_MAXIMIZE        (61488)

#define.WM_SYSCOMMAND      (0x0112)

super();

WinAPI::SendMessage(element.hWnd(), #WM_SYSCOMMAND, #SC_MAXIMIZE, '');

}