update,

Man1130/task1/Man1130-python-comission/course_materials/Note/a1-6-bmiCalculator.py

@@ -0,0 +1,52 @@
+# BMI = Weight / Height^2    kg and m
+
+def convert_to_m(height):
+    return height/100
+
+
+def calculate_bmi(height, weight):
+    #print(weight)
+    #print(height)
+    return weight/height**2
+
+
+def bmi_test(bmi):
+    print('Your bmi is {}'.format(round(bmi, 2)))
+    if bmi < 18.5:
+        print('You\'d better eat more!')
+    elif bmi < 25:
+        print('Good job!')
+    elif bmi < 30:
+        print('You\'d better do some exercises')
+    else:
+        print('You\'d better consult doctor')
+
+
+def bmi_app():
+    try:
+        age = int(input('What\'s your age?'))
+    except ValueError:
+        print("You need to enter 0 - 100 as your age")
+        try:
+            age = int(input('What\'s your age?'))
+        except:
+            print("Your input is still wrong. Quitting the app")
+            return
+
+    if age < 18:
+        print("Sorry I can't help you.")
+    else:
+        height = float(input('What\'s your height (in cm)? '))
+        height = convert_to_m(height)
+        weight = float(input('what\'s your weight (in kg) '))
+        bmi = calculate_bmi(height, weight)
+        bmi_test(bmi)
+
+    print('-------------------------------------------')
+    bmi_app()
+
+
+bmi_app()
+
+# how to improve?
+# Q1 what if the weight is not integer? e.g. 62.5