<html> <head> <title>按鈕點擊事件示例</title> <script> function a(callback) { console.log("執行函數a！"); console.log("調用回調函數"); callback(); // 調用回調函數 } function b(){ console.log("回調函數b"); } function c() { console.log("回調函數c"); } function execute(){ a(b); a(c); } <!-- execute(); --> </script> </head> <body> <button onclick = "execute()">回調函數</button> </body> <html>
