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2023-12-01

VB.Net支持以下赋值运算符 -

操作者	描述	例
=	简单赋值运算符，将右侧操作数的值分配给左侧操作数	C = A + B将A + B的值分配给C
+=	添加AND赋值运算符，它将右操作数添加到左操作数并将结果赋给左操作数	C + = A等于C = C + A.
-=	减去AND赋值运算符，它从左操作数中减去右操作数，并将结果赋给左操作数	C - = A相当于C = C - A.
*=	乘以AND赋值运算符，它将右操作数与左操作数相乘，并将结果赋给左操作数	C * = A等于C = C * A.
/=	除法AND赋值运算符，它将左操作数除以右操作数，并将结果赋给左操作数（浮点除法）	C/= A相当于C = C/A.
\=	除AND赋值运算符，它将左操作数除以右操作数，并将结果赋给左操作数（整数除法）	C\= A相当于C = C\A.
^=	指数和赋值运算符。它将左操作数提升为右操作数的幂，并将结果赋给左操作数	C ^ = A等于C = C ^ A.
<<=	左移AND赋值运算符	C << = 2与C = C << 2相同
>>=	右移AND赋值运算符	C >> = 2与C = C >> 2相同
&=	将String表达式连接到String变量或属性，并将结果分配给变量或属性。	Str1＆= Str2与...相同 Str1 = Str1和Str2

例子 (Example)

尝试以下示例以了解VB.Net中可用的所有赋值运算符 -

Module assignment
   Sub Main()
      Dim a As Integer = 21
      Dim pow As Integer = 2
      Dim str1 As String = "Hello! "
      Dim str2 As String = "VB Programmers"
      Dim c As Integer
      c = a
      Console.WriteLine("Line 1 - =  Operator Example, _
      Value of c = {0}", c)
         c += a
         Console.WriteLine("Line 2 - +=  Operator Example, _
      Value of c = {0}", c)
         c -= a
         Console.WriteLine("Line 3 - -=  Operator Example, _
      Value of c = {0}", c)
         c *= a
         Console.WriteLine("Line 4 - *=  Operator Example, _
      Value of c = {0}", c)
         c /= a
         Console.WriteLine("Line 5 - /=  Operator Example, _
      Value of c = {0}", c)
         c = 20
         c ^= pow
         Console.WriteLine("Line 6 - ^=  Operator Example, _
      Value of c = {0}", c)
         c <<= 2
         Console.WriteLine("Line 7 - <<=  Operator Example,_
      Value of c = {0}", c)
         c >>= 2
         Console.WriteLine("Line 8 - >>=  Operator Example,_
      Value of c = {0}", c)
         str1 &= str2
         Console.WriteLine("Line 9 - &=  Operator Example,_
      Value of str1 = {0}", str1)
         Console.ReadLine()
   End Sub
End Module

编译并执行上述代码时，会产生以下结果 -

Line 1 - =  Operator Example, Value of c = 21
Line 2 - += Operator Example, Value of c = 42
Line 3 - -= Operator Example, Value of c = 21
Line 4 - *= Operator Example, Value of c = 441
Line 5 - /= Operator Example, Value of c = 21
Line 6 - ^= Operator Example, Value of c = 400
Line 7 - <<= Operator Example, Value of c = 1600
Line 8 - >>= Operator Example, Value of c = 400
Line 9 - &= Operator Example, Value of str1 = Hello! VB Programmers