您应该避免使用这三种聚集类型。

You should avoid using these three collection types.

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这是因为聚集类型不是强类型的。

This is because collection types are not strongly typed.

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如果您不能改变原始的API，那么您可以书写封装器代码，将聚集类型转化为数组。

If you cannot change the original API, you can write wrapper code to convert the collection type into an array.

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