赋值运算符

VB.Net支持以下赋值运算符：

运算符	描述	例
=	简单赋值操作符，将值从右侧操作数分配给左侧操作数	C = A + B A + B将赋值为C
+ =	添加AND赋值运算符，向左操作数添加右操作数，并将结果赋值给左操作数	C + = A等于C = C + A
- =	减法AND赋值运算符，它从左操作数中减去右操作数，并将结果赋值给左操作数	? - = A等于C = C - A
* =	乘法AND赋值运算符，它将右操作数与左操作数相乘，并将结果赋值给左操作数	C * = A等于C = C * A
/ =	除法AND赋值运算符，它用右操作数划分左操作数，并将结果分配给左操作数（浮点除法）	C / = A等于C = C / A
\ =	除法AND赋值运算符，它用右操作数划分左操作数，并将结果分配给左操作数（整数除法）	? = A等于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，并将结果分配给左操作数。	C ^ = A等于C = C ^ A
<< =	左移AND赋值运算符	C语言的<< = 2是同C = C << 2
>> =	右移AND赋值运算符	C >> = 2 >> 2同C = C
＆=	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赛车是一样的 STR1 = STR1与STR2

示例：

尝试以下示例来了解VB.Net中可用的所有赋值运算符：

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
Proj.MsgDebug.Add("Line 1 - =  Operator Example, Value Of c = {0}", c)
c += a
Proj.MsgDebug.Add("Line 2 - +=  Operator Example, Value Of c = {0}", c)
c -= a
Proj.MsgDebug.Add("Line 3 - -=  Operator Example, Value Of c = {0}", c)
c *= a
Proj.MsgDebug.Add("Line 4 - *=  Operator Example, Value Of c = {0}", c)
c /= a
Proj.MsgDebug.Add("Line 5 - /=  Operator Example, Value Of c = {0}", c)
c = 20
c ^= pow
Proj.MsgDebug.Add("Line 6 - ^=  Operator Example, Value Of c = {0}", c)
c <<= 2
Proj.MsgDebug.Add("Line 7 - <<=  Operator Example,Value Of c = {0}", c)
c >>= 2
Proj.MsgDebug.Add("Line 8 - >>=  Operator Example,Value Of c = {0}", c)
str1 &= str2
Proj.MsgDebug.Add("Line 9 - &=  Operator Example,Value Of str1 = {0}", str1)

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