for-in

 
 
 

循环的最常见用途是循环访问数组的每个元素。MEL 采用循环的特殊形式,支持您轻松执行循环。

for-in 循环的形式如下所示:

for (array-element in array) {
	statement;
	statement;
	...
}
string $carType[3] = {"Porsche", "Ferrari", "BMW"};
string $car;
for ($car in $carType) {
	print("I want a new ");
	print($car + ".\n");
}

它将在“脚本编辑器”(Script Editor)中打印以下行:

I want a new Porsche.
I want a new Ferrari.
I want a new BMW.

该循环将执行三次,分别为 $carType 中的每个数组元素执行一次。