var bmi = weight/(height*height); if (bmi<=18.5){ alert('guoqing'); } else if(bmi<=25){ alert('zhengchang'); } else if(bmi<=28){ alert('guozhong'); } else if (bmi>=32){ alert('yanzhongfeipang'); } else { alert('feipang'); }
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馒头饽
var bmi = weight/(height*height); if (bmi<=18.5){ alert('guoqing'); } else if(bmi<=25){ alert('zhengchang'); } else if(bmi<=28){ alert('guozhong'); } else if (bmi>=32){ alert('yanzhongfeipang'); } else { alert('feipang'); }