知识点回顾

1.求y和z的值是多少？javascript <script type="text/javascript">java var x = 1;浏览器 var y = 0;cookie var z = 0;框架 function add(n){n=n+1;}函数 y = add(x);url function add(n){n=n+3;}spa z = add(x);prototype </script

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