You can edit the relationships between bones (and hence create/modify the chains of bones) both from the 3D Viewport and the Properties. Whatever method you prefer, it's always a matter of deciding, for each bone, if it has to be parented to another one, and if so, if it should be connected to it.
到父级 和/或链接骨骼, 你可以:
In the 3D Viewport, select the bone and then its future parent, and press Ctrl-P (or). In the small Make Parent menu that pops up, choose Connected if you want the child to be connected to its parent, else click on Keep Offset. If you have selected more than two bones, they will all be parented to the last selected one. If you only select one already-parented bone, or all selected bones are already parented to the last selected one, your only choice is to connect them, if not already done. If you select only one non-parented bone, you will get the Need selected bone(s) error message...
In the Properties, Bones tab, for each selected bone, you can select its parent in the Parent data ID to the upper right corner of its Relations panel. If you want them to be connected, just enable the checkbox to the right of the list.
用这种方法，子骨骼的尾端不会被移动——所以如果启用了 Connected(连接) ，该操作将会使子骨骼完全变换。
In a 3D Viewport, select the desired bones, and press Alt-P (or). In the small Clear Parent menu that pops up, choose Clear Parent to completely free all selected bones, or Disconnect Bone if you just want to break their connections.
In the Properties, Bones tab, for each selected bone, you can select no parent in the Parent data ID of its Relations panel, to free it completely. If you just want to disconnect it from its parent, disable the Connected checkbox.