确保在Delphi7下能使用的libeay32ssleay32

确保在Delphi7下能使用的libeay32_ssleay32 需要IdHttp控件和IdSSLIOHandlerSocket控件； 示例代码： IdSSLIOHandlerSocket1 := TIdSSLIOHandlerSocket.Create(nil); IdSSLIOHandlerSocket.SSLOptions.Method:=sslvTLSv1; IdSSLIOHandlerSocket.SSLOptions.Mode := sslmClient; IdHttp1.IOHandler:=IdSSLIOHandlerSocket1;