一个方法可有多个结构化例外处理区块，而这些区块也可以彼此巢状嵌入。

A single method can have multiple structured exception handling blocks, and the blocks can also be nested within each other.

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支援结构化例外状况处理。

Support for structured exception handling.

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支援结构化例外状况处理。

Support for structured exception handling.

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