//获取url中的paramsvar search = location.search.substring(1);//params转换object(javascript)search?JSON.parse('{"' + search.replace(/&/g, '","').replace(/=/g,'":"') + '"}',       function(key, value) { return key===""?value:decodeURIComponent(value) }):{}

search = "abc=foo&def=%5Basf%5D&xyz=5&foo=b%3Dar";
function test(search)
{
 　　return search?JSON.parse('{"' + search.replace(/&/g, '","').replace(/=/g,'":"') + '"}', function(key, value) { return key===""?value:decodeURIComponent(value) }):{}
}