Show 例子
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
