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書名： Unreal Development Kit Game Programming with UnrealScript：Beginner's Guide
作者名： Rachel Cordone
本章字數： 181字
更新時間： 2021-08-27 11:59:09

Time for action – Using if/else

Let's write some code to see if/else in action for ourselves.

Take the following code:

var int Int1, Int2;

function PostBeginPlay()
{
    if(Int1 > Int2)
        'log("Int1 is greater than Int2");
    else if(Int1 == Int2)
        'log("Int1 is equal to Int2");
    else
        'log("Int1 is less than Int2");
}

defaultproperties
{
    Int1=5
    Int2=2
}

What would we expect the result to be? Let's look at the log for the answer:
```
[0007.72] ScriptLog: Int1 is greater than Int2
```

What just happened?

We can see that the if statement is executed and not the else if or else statements. Notice that in this example we didn't use the curly brackets in our statements. If there is only one line after the if, else if, or else statements brackets aren't necessary. However, if there are two or more lines, we would need to use brackets.

For

For is a different kind of control statement called an iterator. It will execute the code we write a specific number of times until a condition is met. Let's take a closer look at it.

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Unreal Development Kit Game Programming with UnrealScript：Beginner's Guide

Time for action – Using if/else

What just happened?

For