PowerShell 技能连载 - 有用的静态 .NET 方法
适用于 PowerShell 所有版本
PowerShell 可以调用 .NET 类型的静态方法。以下是一些很好用的单行代码：
[Math]::Round(7.9)
[Convert]::ToString(576255753217, 8)
[Guid]::NewGuid()
[Net.Dns]::GetHostByName('schulung12')
[IO.Path]::GetExtension('c:\test.txt')
[IO.Path]::ChangeExtension('c:\test.txt', 'bak')
要查看更多的用法，请删除类型（方括号中的文字）后的代码，然后键入两个冒号。PowerShell ISE 将会自动弹出一个快捷菜单列出该类型可用的方法。在 PowerShell 控制台中，只需要按下 TAB 键即可得到自动完成的建议。
您也可以将一个类型通过管道输出到 Get-Member 命令：
PS> [Math] | Get-Member -MemberType *Method -Static
TypeName: System.Math
Name MemberType Definition
---- ---------- ----------
Abs Method static sbyte Abs(sbyte value), static int16 Abs(int16 value), static int Abs(int value), sta...
Acos Method static double Acos(double d)
Asin Method static double Asin(double d)
Atan Method static double Atan(double d)
Atan2 Method static double Atan2(double y, double x)
BigMul Method static long BigMul(int a, int b)
Ceiling Method static decimal Ceiling(decimal d), static double Ceiling(double a)
Cos Method static double Cos(double d)
Cosh Method static double Cosh(double value
DivRem Method static int DivRem(int a, int b, [ref] int result), static long DivRem(long a, long b, [ref] ...
Equals Method static bool Equals(System.Object objA, System.Object objB)
Exp Method static double Exp(double d)
Floor Method static decimal Floor(decimal d), static double Floor(double d)
IEEERemainder Method static double IEEERemainder(double x, double y)
Log Method static double Log(double d), static double Log(double a, double newBase)
Log10 Method static double Log10(double d)
Max Method static sbyte Max(sbyte val1, sbyte val2), static byte Max(byte val1, byte val2), static int1...
Min Method static sbyte Min(sbyte val1, sbyte val2), static byte Min(byte val1, byte val2), static int1...
Pow Method static double Pow(double x, double y)
ReferenceEquals Method static bool ReferenceEquals(System.Object objA, System.Object objB)
Round Method static double Round(double a), static double Round(double value, int digits), static double ...
Sign Method static int Sign(sbyte value), static int Sign(int16 value), static int Sign(int value), stat...
Sin Method static double Sin(double a)
Sinh Method static double Sinh(double value)
Sqrt Method static double Sqrt(double d)
Tan Method static double Tan(double a)
Tanh Method static double Tanh(double value)
Truncate Method static decimal Truncate(decimal d), static double Truncate(double d)
要查看某个方法的所有重载的签名，请去掉圆括号：
PS> Get-Something -Path test
You entered test.
PS> [Math]::Round
OverloadDefinitions
-------------------
static double Round(double a
static double Round(double value, int digits)
static double Round(double value, System.MidpointRounding mode)
static double Round(double value, int digits, System.MidpointRounding mode
static decimal Round(decimal d
static decimal Round(decimal d, int decimals)
static decimal Round(decimal d, System.MidpointRounding mode)
static decimal Round(decimal d, int decimals, System.MidpointRounding mode)