The way you get %2520 is when. If you look at rfc 3986 appendix a, you will see that space is simply not mentioned anywhere in the grammar for defining a url. Sometimes the spaces get url encoded to the + sign, and some other times to %20.
Lanes reopen Deadly crash on I20, officials say
分析如下： 根据 gb ∕ t 707―1998热轧槽钢国标，20号槽钢分为：20a；20b两种。 1、20a槽钢的标准：高：200㎜ 外宽：73㎜ 厚度：7.0㎜ 理论重量：22.637千克/米。 2、20b槽钢的标准：高：200㎜. @metabyter i think it is more technically correct to phrase the question as in a url, should i encode the spaces using %20 or + in the query part of a url? because while the example you show. A bit of explaining as to what that %2520 is :
Since it's not mentioned anywhere in the.
As the aforementioned rfc does not include any reference of encoding spaces as +, i guess using %20 is the way to go today. I am interested in knowing why '%20' is used as a space in urls, particularly why %20 was used and why we even need it in the first place. The % character is encoded as %25. The common space character is encoded as %20 as you noted yourself.
What is the difference and why should this happen?
