計算BMI數值及相對應的標準範圍，並將資訊存入localStorage。 This Calculator can be used to calculate BMI and the corresponding BMI weight status category, and save them into localStorage. DEMO: https://100401031.github.io/BMI-Calculator/index.html Source Code: https://github.com/100401031/BMI-Calculator (UI設計及素材由六角學院 Hexschool 提供)