目录结构
                            
                            
                                Wireshark-win64-3.0.0.exe
                                56.7M
                            
                            
                            
                                WinPcap_4_1_3.exe
                                894KB
                            
                            
                            
                                VirtualBox-5.2.26-128414-Win.exe
                                109.2M
                            
                            
                            
                                USG6000V.zip
                                344.9M
                            
                            
                            
                                NE9000.zip
                                405.5M
                            
                            
                            
                                NE5000E.zip
                                405.2M
                            
                            
                            
                                NE40E.zip
                                405.7M
                            
                            
                            
                                eNSP V100R003C00SPC100 Setup.exe
                                542.4M
                            
                            
                            
                                CX.zip
                                405.6M
                            
                            
                            
                                CE.zip
                                564.6M
                            
                            
                            
                                CE.img
                                1.27G