✔ 最佳答案
1. Let's say, your computer A has two network cards (card 1 and card 2), you have to use Internet Sharing on A and select card 1 connecting to broadband modem.
2. Using a cross-over cable to connect your second computer (B) to the network card 2 of computer A.
3. If you do not want to use cross-over network cable to connect two computer or your computer B is far away from computer A, you have to consider to get a longer cross-over network cable or using a LAN switch/hub.
4. However; if you have to buy a switch/hub, you had better to buy a internet router to share your broadband internet, do not use your computer to share. Because buy a switch/hub may cost similar a internet router.