如题，我看了transport block 的demand connector 的使用说明：Demand: If the demand connector is connected the block will only accept items if the value at the demand connector is greater then the current number of items being transported.0 J% c1 Z- c5 D1 |1 \$ n7 m: i/ S
P L( z2 [) P z7 ^( @是不是说现在我transport block 正在transport 4个items，我的demand connector 输入值要大于4，比如说5之类的才能使得transport block接受我的这5个小球；反之，要是 输入值要小于4，比如2，它就必须累积到5才能走进transport block ？; a" q! A' ]1 _# ^* p
发表于 2010-5-11 09:58:55
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