Another reason for an explicit cast is to select a specific conversion when more than one conversion is possible.
显式使用强制类型转换的另一个原因是：可能存在多种转换时，需要选择一种特定的类型转换。
Another reason for an explicit cast is to select a specific conversion when more than one conversion is possible.
显式使用强制类型转换的另一个原因是：可能存在多种转换时，需要选择一种特定的类型转换。
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