Trim的使用
These methods are designed for trimming characters from strings.
Here's a breakdown of each method, along with examples of their usage:
1. Trim(char trimChar):
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Removes all leading and trailing instances of a specific character from a string.
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Example:
string myString = " Hello World! ";
string trimmed = myString.Trim(' '); // trimmed will be "Hello World!"
2. Trim(params char[]? trimChars):
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Removes all leading and trailing occurrences of characters from a specified array.
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If
trimCharsis null or empty, it removes whitespace characters. -
Example:
string myString = ",,Hello,World,,";
string trimmed = myString.Trim(','); // trimmed will be "Hello,World"
3. Trim():
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Removes all leading and trailing whitespace characters from a string.
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Example:
string myString = "\t This is a string with whitespace. \n";
string trimmed = myString.Trim(); // trimmed will be "This is a string with whitespace."
4. TrimEnd():
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Removes all trailing whitespace characters from a string.
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Example:
string myString = "This is a string with trailing whitespace ";
string trimmed = myString.TrimEnd(); // trimmed will be "This is a string with trailing whitespace"
5. TrimEnd(char trimChar):
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Removes all trailing occurrences of a specific character from a string.
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Example:
string myString = "Hello!!!!";
string trimmed = myString.TrimEnd('!'); // trimmed will be "Hello"
6. TrimEnd(params char[]? trimChars):
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Removes all trailing occurrences of characters from a specified array.
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If
trimCharsis null or empty, it removes whitespace characters. -
Example:
string myString = "Hello...World...";
string trimmed = myString.TrimEnd(new char[] { '.' }); // trimmed will be "Hello...World"
7. TrimStart():
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Removes all leading whitespace characters from a string.
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Example:
string myString = " This is a string with leading whitespace.";
string trimmed = myString.TrimStart(); // trimmed will be "This is a string with leading whitespace."
8. TrimStart(char trimChar):
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Removes all leading occurrences of a specific character from a string.
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Example:
string myString = "*********Hello World*********";
string trimmed = myString.TrimStart('*'); // trimmed will be "Hello World*********"
9. TrimStart(params char[]? trimChars):
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Removes all leading occurrences of characters from a specified array.
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If
trimCharsis null or empty, it removes whitespace characters. -
Example:
string myString = "00012345";
string trimmed = myString.TrimStart(new char[] { '0' }); // trimmed will be "12345"