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Math.pow()可计算任意次方,Math.sqrt()计算平方

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程程wcl

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var bmi = weight/Math.pow(height,2);

if (bmi>=32){

   console.log('严重肥胖');

}

else if(bmi>=28){

    console.log('肥胖');

}else if(bmi>=25){

    console.log('过重');

}else if(bmi>=18.5){

    console.log('正常');

}else{

    console.log('过轻');

}


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