i tried,but failed.
it should be like this:
a physical object follow a non-physical object and keeps
its property.
it means i cant use ph_enable to disable then enable.
i tried and tried,but failed and failed.
so im looking for some idea here.
thx!

When you permanently disable and enable the object, what for do you then need its physics properties? Physics wont work when an object is permanently disabled and enabled.

Physics objects react on forces, this can be easily used to let it follow another object. Just apply a force vector in direction of the target and with a magnitude proportional to the target distance.

ok,im not good at english,and you misunderstood me.
a physical object follow a non-physical object and keeps its physics attribute
.
i mean ..hmm...
you know, im using phcon_add and bound 2 objects,then i want to those two objects which use phcon_add follow my non-phisical charactor.
now i think you should understand wat i mean

i think he understood you. reread his answer.