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Today, the editor will share with you the relevant knowledge points about the escape characters of C#. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article, let's take a look at it.

Character escape

The backslash character (\) in a regular expression indicates that the character that follows it is a special character or that it should be interpreted literally.

The following table lists the escape characters:

Escape character description pattern match\ a matches the alarm (bell) character\ u0007. The "\ u0007"\ b in "Warning!" +'\ u0007' matches the backspace key\ u0008 in the character class. [\ b] {3,} "\ b\ b" in "\ b\ b" matches the tab\ u0009. "Name\ t" and "Addr\ t"\ r in "Name\ tAddr\ t" match the carriage return character\ u000D. (\ r is not equivalent to the newline character\ n. )\ r\ n (\ w +) "\ r\ nHello\ nWorld." The "\ r\ nHello"\ v in matches the vertical tab character\ u000B. "\ v\ v\ v" in [\ v] {2,} "\ v\ v\ v" matches the page feed character\ u000C. The "\ f\ f\ f" in [\ f] {2,} "\ f\ f\ f" matches the newline character\ u000A. \ r\ n (\ w+) "\ r\ nHello\ nWorld." The "\ r\ nHello"\ e in matches the escape character\ u001B. The "\ x001B"\ nnn in\ e "\ x001B" specifies a character in octal representation (nnn consists of two to three digits). The "a b" and "c d"\ x nn in\ w\ 040\ w "a bc d" specify characters using hexadecimal representations (nn happens to be made up of two digits). The "a b" and "c d"\ c X\ c x in\ w\ x20\ w "a bc d" match the ASCII control characters specified by X or x, where X or x is the letter of the control character. The "\ x0003" (Ctrl-C)\ u nnnn in\ cC "\ x0003" matches a Unicode character (a four-digit number represented by nnnn) in hexadecimal representation. The words "a b" and "c d"\ in\ w\ u0020\ w "a bc d" match with an unrecognized escape character. \ d + [\ +-x\ *]\ d + [\ +-x\ *\ d + [2 +-x\ *\ d + (2x2) * 3 # 9 "above are all the contents of the article" what are the escape characters of C# "? thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.

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