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交作业了

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烟云怀僧

#1 Created at ... [Delete] [Delete and Lock User]
'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)).toFixed(2);

    if (bmi <= 18.5){
        alert('您的体重过轻,请加强营养');
    }else if(bmi <= 25 && bmi > 18.5){
        alert('您的体重正常,请继续保持');
    }else if(bmi <= 28 && bmi > 25){
        alert('您的体重过重,请注意饮食');
    }else if(bmi <= 32 && bmi > 28){
        alert('您的体重过重,已达到肥胖');
    }else if(bmi > 32){
        alert('您的体重过重,已达到严重肥胖');
    }

隐形蚂蚱

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

好像单方向确实只要判断小于就行了哎


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