有个url例如以下:
http://passport.csdn.net/account/login?
from=http%3a%2f%2fwrite.blog.csdn.net%2fpostedit
我们该怎样获取from这个參数的值呢?在网上搜了下方法非常easy,例如以下,第一种是通过正则。另外一种通过切串放进数组的方式:
方法一:
function getQueryString(name) { var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i"); var r = window.location.search.substr(1).match(reg); if (r != null) return unescape(r[2]); return null; } var from = getQueryString("from"); alert(from);
方法二:
function GetRequest() { var url = location.search; //获取url中"?"符后的字串 var theRequest = new Object(); if (url.indexOf("?") != -1) { var str = url.substr(1); strs = str.split("&"); for(var i = 0; i < strs.length; i ++) { theRequest[strs[i].split("=")[0]]=unescape(strs[i].split("=")[1]); } } return theRequest; } var req = GetRequest(); var from = req['from']; alert(from);