Math类

• double d1 = 3.14;

• double d2 = 3.49;

• double d3 = 3.5;

• double d4 = 3.51;

• double d5 = -3.14;

• double d6 = -3.49;

• double d7 = -3.5;

• double d8 = -3.51;

• com.orhanobut.logger.Logger.e(Math.round(d1) + "");//3
  com.orhanobut.logger.Logger.e(Math.round(d2) + "");//3
  com.orhanobut.logger.Logger.e(Math.round(d3) + "");//4
  com.orhanobut.logger.Logger.e(Math.round(d4) + "");//4

• com.orhanobut.logger.Logger.e(Math.round(d5) + "");//-3
  com.orhanobut.logger.Logger.e(Math.round(d6) + "");//-3
  com.orhanobut.logger.Logger.e(Math.round(d7) + "");//-3
  com.orhanobut.logger.Logger.e(Math.round(d8) + "");//-4

• 总结：

  
  
  

  图片.png