String对象的方法

Function	Description	Example
CompareTo()	Compares one string to another	("Hello").CompareTo("Hello")
Contains()	Returns "True" if a specified comparison string is in a string or if the comparison string is empty	("Hello").Contains("ll")
CopyTo()	Copies part of a string to another string	$a = ("Hello World").toCharArray() ("User!").CopyTo(0, $a, 6, 5) $a
EndsWith()	Tests whether the string ends with a specified string	("Hello").EndsWith("lo")
Equals()	Tests whether one string is identical to another string	("Hello").Equals($a)
IndexOf()	Returns the index of the first occurrence of a comparison string	("Hello").IndexOf("l")
IndexOfAny()	Returns the index of the first occurrence of any character in a comparison string	("Hello").IndexOfAny("loe")
Insert()	Inserts new string at a specified index in an existing string	("Hello World").Insert(6, "brave ")
GetEnumerator()	Retrieves a new object that can enumerate all characters of a string	("Hello").GetEnumerator()
LastIndexOf()	Finds the index of the last occurrence of a specified character	("Hello").LastIndexOf("l")
LastIndexOfAny()	Finds the index of the last occurrence of any character of a specified string	("Hello").LastIndexOfAny("loe")
PadLeft()	Pads a string to a specified length and adds blank characters to the left (right-aligned string)	("Hello").PadLeft(10)
PadRight()	Pads string to a specified length and adds blank characters to the right (left-aligned string)	("Hello").PadRight(10) + "World!"
Remove()	Removes any requested number of characters starting from a specified position	("Hello World").Remove(5,6)
Replace()	Replaces a character with another character	("Hello World").Replace("l", "x")
Split()	Converts a string with specified splitting points into an array	("Hello World").Split("l")
StartsWith()	Tests whether a string begins with a specified character	("Hello World").StartsWith("He")
Substring()	Extracts characters from a string	("Hello World").Substring(4, 3)
ToCharArray()	Converts a string into a character array	("Hello World").toCharArray()
ToLower()	Converts a string to lowercase	("Hello World").toLower()
ToLowerInvariant()	Converts a string to lowercase using casing rules of the invariant language	("Hello World").toLowerInvariant()
ToUpper()	Converts a string to uppercase	("Hello World").toUpper()
ToUpperInvariant()	Converts a string to uppercase using casing rules of the invariant language	("Hello World").ToUpperInvariant()
Trim()	Removes blank characters to the right and left	(" Hello ").Trim() + "World"
TrimEnd()	Removes blank characters to the right	(" Hello ").TrimEnd() + "World"
TrimStart()	Removes blank characters to the left	(" Hello ").TrimStart() + "World"
Chars()	Provides a character at the specified position	("Hello").Chars(0)