题解 | #判断体重指数#

继续if else判断 在运用逻辑运算

    double height= in.nextDouble();

            double weight= in.nextDouble();

            double bodx = weight / (height * height); 

            if ( bodx < 18.5){

                System.out.println("偏瘦");

            }else if (bodx >= 18.5 && bodx < 20.9){

                System.out.println("苗条");

            }else if (bodx >= 20.9 && bodx < 24.9){

                System.out.println("适中");

            }

            if (bodx >= 24.9){

                System.out.println("偏胖");

            }