VBScript-运算符 - 芒果文档

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📜 VBScript-运算符

📅 最后修改于: 2020-10-19 04:06:18 🧑 作者: Mango

什么是运算符？

让我们接受一个表达式4 + 5等于9 。在这里，4和5称为操作数，而+称为运算符。 VBScript语言支持以下类型的运算符-

算术运算符
比较运算符
逻辑（或关系）运算符
串联运算符

算术运算符

VBScript支持以下算术运算运算符-

假设变量A持有5，变量B持有10，则-

Operator	Description	Example
+	Adds two operands	A + B will give 15
–	Subtracts second operand from the first	A – B will give -5
*	Multiply both operands	A * B will give 50
/	Divide numerator by denumerator	B / A will give 2
%	Modulus Operator and remainder of after an integer division	B MOD A will give 0
^	Exponentiation Operator	B ^ A will give 100000

要更好地了解这些运算符，可以自己尝试。

比较运算符

有下列通过的VBScript语言支持的比较运算符-

假设变量A持有10，变量B持有20，则-

Operator	Description	Example
=	Checks if the value of two operands are equal or not, if yes then condition becomes true.	(A == B) is False.
<>	Checks if the value of two operands are equal or not, if values are not equal then condition becomes true.	(A <> B) is True.
>	Checks if the value of left operand is greater than the value of right operand, if yes then condition becomes true.	(A > B) is False.
<	Checks if the value of left operand is less than the value of right operand, if yes then condition becomes true.	(A < B) is True.
>=	Checks if the value of left operand is greater than or equal to the value of right operand, if yes then condition becomes true.	(A >= B) is False.
<=	Checks if the value of left operand is less than or equal to the value of right operand, if yes then condition becomes true.	(A <= B) is True.

要更好地了解这些运算符，可以自己尝试。

逻辑运算符

VBScript语言支持以下逻辑运算符-

假设变量A持有10，变量B持有0，则-

Operator	Description	Example
AND	Called Logical AND operator. If both the conditions are True, then Expression becomes True.	a<>0 AND b<>0 is False.
OR	Called Logical OR Operator. If any of the two conditions is True, then condition becomes True.	a<>0 OR b<>0 is true.
NOT	Called Logical NOT Operator. It reverses the logical state of its operand. If a condition is True, then the Logical NOT operator will make it False.	NOT(a<>0 OR b<>0) is false.
XOR	Called Logical Exclusion. It is the combination of NOT and OR Operator. If one, and only one, of the expressions evaluates to True, result is True.	(a<>0 XOR b<>0) is true.

要更好地了解这些运算符，可以自己尝试。

串联运算符

VBScript语言支持以下串联运算符-

假设变量A持有5，变量B持有10，则-

Operator	Description	Example
+	Adds two Values as Variable Values are Numeric	A + B will give 15
&	Concatenates two Values	A & B will give 510

假设变量A =“ Microsoft”和变量B =“ VBScript”，然后-

Operator	Description	Example
+	Concatenates two Values	A + B will give MicrosoftVBScript
&	Concatenates two Values	A & B will give MicrosoftVBScript

注–串联运算符可用于数字和字符串。如果变量包含数字值或字符串值，则输出取决于上下文。

为了更好地了解这些操作员，您可以自己尝试。