源代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>享学课堂</title> </head> <body> <h1>JavaScript注释不被执行</h1> <p id="demo"></p> <script> var x; x = 5; // x = 6; I will not be executed document.getElementById("demo").innerHTML = x; </script> </body> </html>
运行结果