http://example.com:1234/test.htm#part2
location.hash #part2
location.port 1234
http://www.w3school.com.cn/tiy/t.asp?f=hdom_loc_search
location.search ?f=hdom_loc_search
location.host example.com:1234
location.hostname example.com
location.protocol http:
location.href http://example.com:1234/test.htm#part2