VB.Net 运算符优先级
VB.Net 运算符运算符优先级确定表达式中的术语分组。 这会影响表达式的计算方式。 某些运营商比其他运营商具有更高的优先级; 例如，乘法运算符的优先级高于加法运算符：
例如，x = 7 + 3 * 2; 这里，x被分配13，而不是20，因为operator *具有比+高的优先级，因此它首先乘以3 * 2，然后加到7。
这里，具有最高优先级的运算符出现在表的顶部，具有最低优先级的运算符出现在底部。 在表达式中，将首先计算较高优先级运算符。
| 操作符 | 优先级 |
|---|---|
| Await | 最高 |
| Exponentiation (^) | |
| Unary identity and negation (+, -) | |
| Multiplication and floating-point division (*, /) | |
| Integer division () | |
| Modulus arithmetic (Mod) | |
| Addition and subtraction (+, -) | |
| Arithmetic bit shift (<<, >>) | |
| All comparison operators (=, <>, <, <=, >, >=, Is, IsNot, Like, TypeOf...Is) | |
| Negation (Not) | |
| Conjunction (And, AndAlso) | |
| Inclusive disjunction (Or, OrElse) | |
| Exclusive disjunction (Xor) | 最低 |
示例：
以下示例以简单的方式演示运算符优先级：
Module assignment
Sub Main()
Dim a As Integer = 20
Dim b As Integer = 10
Dim c As Integer = 15
Dim d As Integer = 5
Dim e As Integer
e = (a + b) * c / d ' ( 30 * 15 ) / 5
Console.WriteLine("Value of (a + b) * c / d is : {0}", e)
e = ((a + b) * c) / d ' (30 * 15 ) / 5
Console.WriteLine("Value of ((a + b) * c) / d is : {0}", e)
e = (a + b) * (c / d) ' (30) * (15/5)
Console.WriteLine("Value of (a + b) * (c / d) is : {0}", e)
e = a + (b * c) / d ' 20 + (150/5)
Console.WriteLine("Value of a + (b * c) / d is : {0}", e)
Console.ReadLine()
End Sub
End Module
当上述代码被编译和执行时，它产生以下结果：
Value of (a + b) * c / d is : 90
Value of ((a + b) * c) / d is : 90
Value of (a + b) * (c / d) is : 90
Value of a + (b * c) / d is : 50
