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This article mainly explains "what are the qualifiers of C#". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn what are the qualifiers of C#.

Qualifier

The qualifier specifies how many instances of the previous element (which can be a character, group, or character class) must exist in the input string for a match to occur. Qualifiers include the language elements listed in the following table.

The following table lists the qualifiers:

The qualifier describes pattern matching * matching the last element zero or more times. \ d *.\ d ".0", "219.9" + matches the previous element one or more times. "bee" in "be+"been", "be" in "bent"? Match the last element zero or once. " Rai?n "" ran "," rain "{n} match the last element exactly n times." ,\ d {3} "1043.6" matches the last element at least n times in "9876543210". \ d {2,} "166,29", "1930" {n, m} match the last element at least n times, but not more than m times. " "17668", "19302" * in "193024"? Match the previous element zero or more times, but as few times as possible. \ d ".0", "19.9", "219.9" +? Match the previous element one or more times, but as few times as possible. "be" in "be+?"been", "be" in "bent"? Match the previous element zero or once, but as few times as possible. "rai??n"ran", "rain" {n}? Match the leading element exactly n times. ",\ d {3}?" 043 "in" 1043.6 "," 876 "," 543 "and" 9876543210 "{n,}? Match the previous element at least n times, but as few times as possible. "\ d {2,}?" 166", "29" and "1930" {n, m}? The number of matches to the previous element is between n and m, but as few times as possible. "17668", "17668" and "024" in "193024". I believe you have a better understanding of "what are the qualifiers of C #". You might as well do it in practice! Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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