决策结构要求程序员指定一个或多个条件进行评估或测试程序，沿一条或多条语句执行，如果条件被确定为真，以及可选，其他要执行的语句，如果条件确定是假的 (false)。
MATLAB 提供以下类型的决策报表。点击以下链接，以检查他们的细节：
| 语句 | 描述 |
|---|---|
| if ... end statement | An if ... end statement consists of a boolean expression followed by one or more statements. |
| if...else...end statement | An if statement can be followed by an optional else statement, which executes when the boolean expression is false. |
| If... elseif...elseif...else...end statements | An if statement can be followed by an (or more) optional elseif...and an else statement, which is very useful to test various condition. |
| nested if statements | You can use one 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. |
| nested switch statements | You can use one swicth statement inside another switch statement(s). |
