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 is Case Sensitive</h2> <p>Try to change lastName to lastname.</p> <p id="demo"></p> <script> let lastname, lastName; lastName = "Doe"; lastname = "Peterson"; document.getElementById("demo").innerHTML = lastName; </script> </body> </html>