主页
JavaScript
JavaScript 代码块
tryjs_block_alone
运行 ❯
×
更改方向
保存代码
更改主题
<!DOCTYPE html> <html> <body> <h1>JavaScript Block Scope</h1> <p id="demo"></p> <script> { let x = 10; let y = 100; let areal = x * y; document.getElementById("demo").innerHTML = "Areal is " + areal; } </script> </body> </html>