这是一个简单实用的BMI检测结果代码插件,输入身高和体重就可以简单的获得BMI值,同时还有要减肥还是增重的建议,有此需要的朋友下载看看吧。
使用方法:
<script>
function btnClink()
{
var input1 = document.getElementById("high");
var input2 = document.getElementById("weight");
var shengao = input1.value / 100;
var tizhong = input2.value / 2;
var res = tizhong / shengao / shengao;
res = res.toFixed(2);
if(res <= 18.4)
{
alert("BMI = " + res + " " + "偏瘦," + " 多吃肉");
}
else if(res >= 18.5 && res <= 23.9)
{
alert("BMI = " + res + " " + "正常," + " 继续保持");
}
else if(res >= 24.0 && res <= 27.9)
{
alert("BMI = " + res + " " + "偏重," + " 多运动");
}
else
{
alert("BMI = " + res + " " + "肥胖," + " 多多运动");
}
}
</script>
效果截图: