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交作业

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wwz_hello

#1 Created at ... [Delete] [Delete and Lock User]

var bmi = weight/(height*height) ;
if (bmi<18.5){
    alert('过轻');
}
else if(bmi<25){
    alert('正常');
}
else if(bmi<32){
    alert('肥胖');
}
else{
    alert('严重肥胖');
}

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