Article in English: Before you begin to build your treehouse, you should remember to keep safety in mind. Falling out is one of the biggest hazards of a treehouse. There are a few precautions you can take to make sure that everyone who is building the treehouse stays safe.  Don't build too high. Building your treehouse too high could be dangerous. If your treehouse is going to be used mostly by children, the platform should not be any higher than 6–8 feet (1.8–2.4 m). Construct a safe railing. The point of your railing, of course, is to make sure that the treehouse occupants don't fall out. Make sure the railing around your platform is at least 36" high, with balusters no more than 4" apart. Cushion a fall. Surround the area below the treehouse with a soft natural material like wood mulch. This won't entirely prevent injury, but it will provide some cushioning for a fall. You'll use this tree in order to rig up your treehouse. The "V" shape will add extra strength and support, providing an anchor point at four places instead of only at two. Drill a 3/8" into each prong of the "V," making sure that the holes are all level. If they are not level with one another, the structure could be slanted and the support compromised. Depending on the tree, the holes may be spaced farther or shorter apart. Make a mark at the other end using the original measurement between the two holes in the tree. This will ensure that the 2x10s will be perfectly centered and bear equal weight when you hoist them onto the "V". This is so that the trees can sway in the wind and move without damaging the structural integrity of the treehouse. Do this by drilling two 5/8" holes, each 2" to either side of your mark. Then use a jigsaw to cut between the holes, creating a 4" slot, with your mark completely centered. Now when the tree sways in the wind, the platform actually moves a bit to accommodate the swaying. If the platform were simply bolted onto the tree, it would move along with the tree. This is not good for the platform, as it could gradually or suddenly...

Summary in Chinese:
提醒你自己，安全是最重要的。 找到一棵两根主枝条呈“V”型的树。 在“V”形状的每一边，对树木进行预钻孔。 测量每个“V”型中两个孔之间的距离，根据树大小的不同，孔之间的距离有远有近。 把测得的数据剪去3米，将剩下的数据除以二，然后在2x10木板的一个末端做上标记，在另一端使用原始的测量数据。 在2x10木板的四个标记上开四个槽。 在适当的高度为树木增加两个支撑。 把两块2x6木板和支撑物垂直放置。 在刚在固定的木板上方再加两块2x6木板。 把平台绑主支撑物上。 使用搁栅吊件把平台的中心连接到边缘上，使用八个电镀搁栅吊件来连接。 使用2x4木板来支撑平台。