want to do a click to jump to the js method of url.
Click submit, take the values of the two input, and
replace the last two zeros with the string var str= "http://www.baidu.com/loupan_0_0_0_0_0_0_0_0_0_0.html"
, which is spliced into
" http://www.baidu.com/loupan_0_0_0_0_0_0_0_0_1000_20000.html"