BMI cacluate

題目
請寫出一個程式可接受使用者輸入體重與身高 並計算出BMI值?

Body Mass Index (BMI) is a number calculated from a person weight and height. BMI provides a reliable indicator of body fatness for most people and is used to screen for weight categories that may lead to health problems.

w = 體重，單位：公斤;
h = 身高，單位：米;

........BMI...........Weight Status

......Below 18.5 ......Underweight

.....18.5 – 24.9 ..........Normal
......25.0 – 29.9 .......Overweight
..30.0 and Above .......Obese

如果你對BMI有興趣，可以參考BMI