var bmi = weight / (height*height);
console.log(bmi);
if (bmi > 32){
alert('严重肥胖')
} else if (bmi >= 28) {
alert('肥胖')
} else if (bmi >= 25){
alert('过重')
} else if (bmi >= 18.5){
alert('正常')
} else {
alert('过轻')
}
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孤独观测者
var bmi = weight / (height*height);
console.log(bmi);
if (bmi > 32){
alert('严重肥胖')
} else if (bmi >= 28) {
alert('肥胖')
} else if (bmi >= 25){
alert('过重')
} else if (bmi >= 18.5){
alert('正常')
} else {
alert('过轻')
}