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#name
window.location.protocol协议http:
window.location.host主机域名127.0.0.1:5000
window.location.port端口号5000
window.location.pathname路径/demo
window.location.search查询字符串?keywords=Tom
window.location.hash锚点#name