20 80 Relationship Rule. 知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业. A bit of explaining as to what that %2520 is :
A bit of explaining as to what that %2520 is : 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. 知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业.
The % Character Is Encoded As %25.
Since it's not mentioned anywhere in. The common space character is encoded as %20 as you noted yourself. 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.
A Bit Of Explaining As To What That %2520 Is :
As the aforementioned rfc does not include any reference of encoding spaces as +, i guess using %20 is the way to go today. 知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业.
Images References :
A Bit Of Explaining As To What That %2520 Is :
The % character is encoded as %25. Since it's not mentioned anywhere in. As the aforementioned rfc does not include any reference of encoding spaces as +, i guess using %20 is the way to go today.
The Common Space Character Is Encoded As %20 As You Noted Yourself.
知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业. 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.