问题
I request this URL
BillOutQryForCCPre.do?_viewReferer=creditcard/CC/adv/BillOutQry¶=101600000846 in IE,
And I can't get the parameter value.
And when I move my mouse cursor to the hyperlink, I see the URL changed to BillOutQryForCCPre.do?_viewReferer=creditcard/CC/BillOutQry¶=101600000846.
The charactors ¶ is changed to ¶, I don't know why.
And Chrome doesn't have this problem, Firefox too.
When I change the parameter name para to ssss, I find the hyperlink normal.
Is the word para a keyword in IE?
I know I can switch the parameters order to solve this problem, but I really want to know why it's that.
回答1:
¶ is the html entity for the paragraph mark you are seeing there. Apparently, Internet Explorer is trying to be clever and thinks you have left the semi-colon off the end, and so it is converting it anyway.
As mneonneo said in the comment above, you need to HTML-encode the & characters in the url, so that the link you are actually outputting is
BillOutQryForCCPre.do?_viewReferer=creditcard/CC/adv/BillOutQry&para=101600000846
来源：https://stackoverflow.com/questions/12907134/how-does-ie-process-this-url-action-dov-credit-cc-querypara-123456