免費AI編程助手
VB.Net - 賦值運算符
2022-06-02 13:53 更新
等價于VB.Net支持以下賦值運算符：
| 運算符 | 描述 | 示例 |
|---|---|---|
| = | 簡單賦值操作符，將值從右側(cè)操作數(shù)分配給左側(cè)操作數(shù) | C = A + B將A + B的值賦給C |
| += | 加法賦值運算符，向左操作數(shù)添加右操作數(shù)，并將結(jié)果賦給左操作數(shù) | C += A等價于C = C + A |
| -= | 減法賦值運算符，它從左操作數(shù)中減去右操作數(shù)，并將結(jié)果賦給左操作數(shù) | C -= A 等價于 C = C - A |
| *= | 乘法賦值運算符，它將右操作數(shù)與左操作數(shù)相乘，并將結(jié)果賦給左操作數(shù) | C *= A等價于 C = C * A |
| /= | 除法賦值運算符，它用右操作數(shù)劃分左操作數(shù)，并將結(jié)果分配給左操作數(shù)（浮點除法） | C /= A 等價于C = C / A |
| \= | 整除賦值運算符，它用右操作數(shù)劃分左操作數(shù)，并將結(jié)果分配給左操作數(shù)（整數(shù)除法） | C \= A 等價于 C = C \A |
| ^= | 指數(shù)賦值運算符。 它將右操作數(shù)作為為左操作數(shù)的指數(shù)進行求冪，并將結(jié)果分配給左操作數(shù) | C^=A等價于 C = C ^ A |
| <<= | 左移賦值運算符 | C <<= 2 等價于 C = C << 2 |
| >>= | 右移賦值運算符 | C >>= 2 等價于 C = C >> 2 |
| &= | 字符串連接操作符，可以將右邊的字符串連接到做字符串的后面（將左邊的字符串和右邊的字符串連接后賦值給左字符串） | Str1 &= Str2等價于 Str1 = Str1 & Str2 |
示例：
嘗試以下示例來了解VB.Net中可用的所有賦值運算符：
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
當上述代碼被編譯和執(zhí)行時，它產(chǎn)生以下結(jié)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
以上內(nèi)容是否對您有幫助：
更多建議：