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打个比方：用艘船由A出发到C，途径B。我走到一半发现不想去C了，此时船还没到B，可是改变航线的时候发现不能改去B，这个设定比较脑残。 我记得以前不会这样的 能否改回来
其實以前都有這個BUGXSK 我記得再改遠一點目的地船有機會會退回後面
