运行 ❯
获取您
自己的
网站
×
更改方向
保存代码
更改主题,深色/浅色
前往 Spaces
<!DOCTYPE html> <html> <body> <h2>JavaScript Arithmetic</h2> <p>A typical arithmetic operation takes two numbers (or variables) and produces a new number.</p> <p id="demo"></p> <script> let a = 100; let b = 50; let x = a + b; document.getElementById("demo").innerHTML = x; </script> </body> </html>