try-catch-finally 捕获异常 ; 异常处理语句 ; 处理语句
Finally, the page USES a try block to catch any unforeseen errors with the error description displayed on the page.
最后，页面使用try块捕获任何不可预见的错误，并在页面上显示错误描述。
If you need more complex behavior, you can add try-catch-finally blocks.
如果需要更复杂的行为，那么也可以添加try - catch - finally块。
Don't you hate writing try/catch/finally blocks all the time?
您是不是也一直非常痛恨编写 try/catch/finally 块呢？
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