uses Forms, DBPWDlg in DBPWDlg.pas {PasswordDialog}, DBLogDlg in DBLogDlg.pas {LoginDialog}, qrfilename in qrfilename.pas {FrmQueryFileName}, passwd in passwd.pas {PasswordDlg}, viewrcd in viewrcd.pas {FrmFDBViewer}, newchr in ne

IOCP 模型，可超过3万同时链接请求，可供借鉴-IOCP model, which can be used for reference