<!DOCTYPE html> <html> <body> <h1>JavaScript Map</h1> <p>删除 Map 元素:</p> <p id="demo"></p> <script> // 创建 Map const fruits = new Map([ ["apples", 500], ["bananas", 300], ["oranges", 200] ]); // Delete an Element fruits.delete("apples"); document.getElementById("demo").innerHTML = fruits.size; </script> </body> </html>