App下載
實(shí)例代碼( Tip: 登錄后體驗(yàn)更佳 )
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool在线教程(w3cschool.cn)</title>  
<script src="/statics/js/jquery-1.8.3.min.js"></script>
</head>
<body>
<script>
$(function () { 
    function fn1( value ) {
        alert( value );
    }
    function fn2( value ) {
        fn1("fn2 says: " + value);
        return false;
    }
    var callbacks = $.Callbacks( "memory" );
    callbacks.add( fn1 );
    callbacks.fire( "foo" );
    callbacks.add( fn2 );
    callbacks.fire( "bar" );
    callbacks.remove( fn2 );
    callbacks.fire( "foobar" );
    /*输出 :
    foo
    fn2 says:foo
    bar
    fn2 says:bar
    foobar
    */
})
</script>
 
</body>
</html>
 
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