问题
I'm having trouble finding the correct way to URL encode a string in C#. What I want is to encode the string some string to some%20code. Using HttpUtility.URLEncode(); method encode is to some+string.
回答1:
HttpUtility.UrlEncode does the right thing here.
Encodes a URL string. The UrlEncode method can be used to encode the entire URL, including query-string values.
When it comes to spaces on the URL, a + or %20 are both correct.
Also see URL encoding the space character: + or %20?.
回答2:
If you want spaces encoded as %20 instead of +, you have to do the encoding yourself.
In URL encoding a + means space. You can also use %20, just as you can use the character code variant for any character, but the built in encoding uses the shorter variant.
回答3:
This thread includes a discussion of some of the in-built encoding options for URIs:
How do I replace all the spaces with %20 in C#
来源：https://stackoverflow.com/questions/10784454/url-encode-in-c-sharp