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调用 Location.distanceBetween() 并获取初始和最终方位时,方位的比例是多少?我得到了负值,这对我来说没有意义。方位角从 0 度到 360 度(相对或绝对,没关系)。我唯一能想到的是 N 到 E 到 S 是 0 到 180 度,而 N 到 W 到 S 是 0 到 -180 度。