源代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>享学课堂</title> </head> <body> <p>避免使用 new Array().</p> <p id="demo"></p> <script> var points = new Array(40); document.getElementById("demo").innerHTML = points[0]; </script> </body> </html>
运行结果