'use strict'; var height = parseFloat(prompt('请输入身高(m):')); var weight = parseFloat(prompt('请输入体重(kg):')); var bmi = weight/(height*height); if (bmi<18.5) alert('过轻'); else if(bmi<25) alert('正常'); else if(bmi<28) alert('过重'); else if(bmi<32) alert('肥胖'); else alert('严重肥胖');
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Runnnnnnn