This version greatly improved the efficiency of the function, by caching data rather than reloading it, but it did so at the expense of maintainability.
这个版本对数据进行缓存而不是重新加载，很大程度上改善了函数的有效性，但这会需要更多的维护费用。
Using this XForms solution, users can revisit a Web site, reloading their saved data, and then finish the form.
采用这种XForms解决方案，用户可以重新访问网站，加载保存过的数据并完成表单。
Much of the excitement around Ajax is about being able to change back-end data without reloading the page.
围绕Ajax有很多令人兴奋的事情，其核心就是能在不重载页面的情况下更改后端数据。
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