源代码:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Wfuyu教程(wfuyu.com)</title> </head> <body> <p>局部变量在声明的函数内可以访问。</p> <p id="demo"></p> <script> myFunction(); document.getElementById("demo").innerHTML = "我可以显示 " + typeof carName; function myFunction() { var carName = "Volvo"; } </script> </body> </html>
运行结果：