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iOS 数组排序
降序：（从大到小）
-(void)sortArrayDatas{ [array_datas sortUsingComparator:^NSComparisonResult(id _Nonnull obj1, id _Nonnull obj2) { RainfallStations *station_One = obj1; RainfallStations *station_Two = obj2; double totalRain_one = station_One.totalRain; double totalRain_two = station_Two.totalRain; if (totalRain_one>totalRain_two) { return NSOrderedAscending; } else if (totalRain_one < totalRain_two){ return NSOrderedDescending; }else{ return NSOrderedSame; } }];}
升序：（从小到大）
-(void)sortArrayDatas{ [array_datas sortUsingComparator:^NSComparisonResult(id _Nonnull obj1, id _Nonnull obj2) { RainfallStations *station_One = obj1; RainfallStations *station_Two = obj2; double totalRain_one = station_One.totalRain; double totalRain_two = station_Two.totalRain; if (totalRain_one>totalRain_two) { return NSOrderedDescending; } else if (totalRain_one < totalRain_two){ return NSOrderedAscending; }else{ return NSOrderedSame; } }];}
iOS 数组排序
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