访问示例： http://127.0.0.1:5000/demo?keywords=Tom#name
说明
变量说明值window.location.href完整urlhttp://127.0.0.1:5000/demo?keywords=Tom#namewindow.location.protocol协议http:window.location.host主机域名127.0.0.1:5000window.location.port端口号5000window.location.pathname路径/demowindow.location.search查询字符串?keywords=Tomwindow.location.hash锚点#name
