Gxlsystem TIY Editor
Gxlsystem 在线教程
改变方向
暗黑模式
运行代码
<!DOCTYPE html> <html> <body> <h2>JavaScript 对大小写敏感</h2> <p>请试着把 lastName 改为 lastname。</p> <p id="demo"></p> <script> var lastname, lastName; lastName = "Gates"; lastname = "Jobs"; document.getElementById("demo").innerHTML = lastName; </script> </body> </html>