The namespace using system. Text. regularexpressions needs to be introduced. (If this parameter is not introduced, system. Text. regularexpressions. RegEx must be written when RegEx is written)
Replace method of Regular Expression
String T = "sdf1234
(4) RegEx, RegEx, and RegEx
Content of this chapter:
Decorator
Re Regular Expression
Decorator
The decorator is a well-known design model and is often used in scenarios with cut-plane requirements. It is more classic in terms of
C # Regular Expression tutorial and example,
For a while, regular expression learning was very popular. At that time, I could see several regular expression posts in one day at CSDN, during that time, I learned some basic knowledge through the C #
C # regular expression,For a while, regular expression learning was very popular. At that time, I could see several regular expression posts in one day at CSDN, during that time, I learned some basic knowledge through the C # string and regular
For a while, regular expression learning was very popular. At that time, I could see several regular expression posts in one day at csdn, during that time, I learned some basic knowledge through the C # string and regular expression reference manual
For a while, regular expression learning was very popular. At that time, I could see several regular expression posts in one day at csdn, during that time, I learned some basic knowledge through the C # string and regular expression reference manual
"Positioning character" represents a virtual character, which represents a location, you can also intuitively think that "positioning character" represents the tiny gap between a character and character.^ Indicates that the character after it must
Personally, the main use of it to do some complex string analysis, extract the desired informationLearning principles: Enough on the line, when needed in depth
The summary is as follows:
Special symbols in regular expressions:
"." Table any
For a while, regular expression learning was very popular. At that time, I could see several regular expression posts in one day at CSDN, during that time, I learned some basic knowledge through the C # string and regular expression reference manual
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