请问这样写可以的吗？
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>练习</title>
</head>
<body>
<script type="text/javascript">
var sex=prompt('请输入性别');
var height = Number(prompt('请输入身高'));
var weight = Number(prompt('请输入体重'));
var weightm=(weight-80)*0.7;
var weightw = (weight - 70) * 0.6;
if (sex=='男') {
if (weight>weightm*0.05 && weight<weightm*1.05) {
alert('体重正常');
}else if (weight < weightm * 0.05) {
alert('太瘦了，要多补充营养哦');
}else{
alert('该锻炼身体减肥了哦');
}
}else if (weight > weightw * 0.05 && weight < weightw * 1.05) {
alert('体重正常');
} else if (weight < weightw * 0.05) {
alert('太瘦了，要多补充营养哦');
} else {
alert('该锻炼身体减肥了哦');
}
</script>
</body>
</html>
正在回答 回答被采纳积分+1
-
神知 #1
老师我又写了一遍还是写错
<script>
var sex=prompt('请输入您的性别');
var height=Number(prompt('请输入您的身高'));
var weight=Number(prompt('请输入您的体重'));
/*男性标准体重*/
var weightm=(height-80)*0.7;
/*女性标准体重*/
var weightw=(height-70)*0.6;
if(sex=="男"){
if(weightm*0.95<=weight<=weightm*1.05){
alert('体重正常');
}else if(weightm*0.95>weight){
alert('太瘦了，要多补充营养哦');
}else{
alert('该锻炼身体减肥了哦');
}
}else if(sex=="女"){
if(weightw*0.95<=weight<=weightw*1.05){
alert('体重正常');
}else if(weightw*0.95>weight){
alert('太瘦了，要多补充营养哦');
}else{
alert('该锻炼身体减肥了哦');
}
}
</script>
2021-11-01 21:13:10
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