import gradio as gr

def bmi(w,h):
    b = w / h**2
    if b < 18.5:
        health = "過輕"
    elif b > 24:
        health = "過重"
    else:
        health = "健康"
    return b, health
  
gr.Interface(bmi, ["number", "number"], ["text", "text"],examples=[[80, 1.73],[71, 1.55]]).launch()