<!DOCTYPE html> <html lang="ja"> <head> <title>記録</title> </head> <body> <h1>記録は</h1> <form name="form1"> <input type="text" name="input1">分 <input type="text" name="input2">秒 <input type="text" name="input3">回 <br> <input type="button" id="test1" value="実行"> </form> <h2>1分当たり<p id="test2"> </p></h2><h2>回です。</h2> <script> const x = document.querySelector("#test1"); x.addEventListener("click",func1); function func1() { let m = document.form1.input1.value; let s = document.form1.input2.value; let x = document.form1.input3.value; const z = document.querySelector("#test2"); z.textContent = parseInt(x)/(60*parseInt(m)+parseInt(s))*60 } </script> </body> </html>