是这个意思吗

来源：5-8 编程练习

饭饭小童鞋

2020-06-09 19:51:42

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title> ++和--的运算</title>
</head>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>算数运算</title>
</head>
<body>
    <script>
   var a=4,b=5;
   c1=a+b;
   c2=a-b;
   c3=a*b;
   c4=a/b;
   c5=a%b;
    document.write(c1+"<br>");
    document.write(c2+"<br>");
    document.write(c3+"<br>");
    document.write(c4+"<br>");
    document.write(c5+"<br>");
   </script>
</body>
</html>