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📜  VBScript-决策

📅  最后修改于: 2020-10-19 04:06:32             🧑  作者: Mango

决策使程序员可以控制脚本或其部分之一的执行流程。该执行由一个或多个条件语句控制。

以下是大多数编程语言中常见的典型决策结构的一般形式-

VBScript中的决策声明

VBScript提供以下类型的决策声明。

Statement Description
if statement An if statement consists of a Boolean expression followed by one or more statements.
if..else statement An if else statement consists of a Boolean expression followed by one or more statements. If the condition is True, the statements under the If statements are executed. If the condition is false, then the Else part of the script is Executed
if…elseif..else statement An if statement followed by one or more ElseIf Statements, that consists of Boolean expressions and then followed by an optional else statement, which executes when all the condition becomes false.
nested if statements An if or elseif statement inside another if or elseif statement(s).
switch statement A switch statement allows a variable to be tested for equality against a list of values.