Passing zero will trigger a reload of the current page.
传递零时则会刷新当前页面。
Another disadvantage of Ajax - since the address URL doesn't reload, your visitor can not send the current page to their friends.
Ajax的另一个不足：因为地址url无法被重载，你的访客将无法发送现行页面给他的朋友。
Another disadvantage of Ajax - since the address URL doesn't reload, your visitor can not send the current page to their friends.
Ajax的另一个不足：因为地址url无法被重载，你的访客将无法发送现行页面给他的朋友。
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