通过身高体重判断身材相关代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title></title> </head> <body> 身高：<input type="text" id="heightId">厘米 体重：<input type="text" id="weightId">斤 <input type="button" value="身材" onclick="testf()"> 结果：<input type="text" id="JG"> </body> </html> <script type="text/javascript"> function testf(){ var height=Number(document.getElementById("heightId").value) var weight=Number(document.getElementById("weightId").value) var standardWeight = (height-108)*2;//斤 var str=""; if(weight<standardWeight-10){ str="亲，您应该多吃点"; }else if(weight>standardWeight+10){ str="亲，您应该跑步至少15分钟以上，，可以办个卡"; }else{ str="亲，您是魔鬼身材！"; } document.getElementById("JG").value = str; } </script>