標籤：class blog java http ext javascript
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title></title> <script type="text/javascript"> //1.1聲明式方法：有瀏覽器優先順序，瀏覽器會 預先建立聲明式 方法對象 然後才執行頁面js代碼 function test() { alert("test"); } //1.2匿名方法 （非聲明式） //test2() :報錯 因為非聲明式方法調用必須放在 方法定義的後面 var test2 = function () { alert("test2"); } //1.3 建立對象方式 方法 （非聲明式） //Function 的“建構函式”中最後一個參數永遠是作為方法體代碼，而前面的參數 ，相當於定義方法的形參 var test3 = new Function("alert(‘test3‘)"); //=======================傳回值 function test5() { return 1; } var a = test5();//1 function test6() { } var b = test6();//沒有指定傳回值預設 返回undefined //================內部屬性arguments代表函數被調用時的實參數組 function test7() { alert("test,arguments.length=" + arguments.length); } test7(1, 2, "44"); </script></head><body></body></html>
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