Create a global error handler at the page or application level that catches all unhandled exceptions and routes them to a generic error page.
在网页或应用程序层级建立全域错误处理常式，用来拦截所有未经处理的例外状况，并将其传送到泛用错误网页。
Among other things, it defines a global error handler, and it is where you would place any platform-specific code to run before executing main application logic.
除了其他事情外，它定义一个全局错误处理程序，在此将放置在执行主应用程序逻辑之前要运行的特定于平台的代码。
Among other things, it defines a global error handler, and it is where you would place any platform-specific code to run before executing main application logic.
除了其他事情外，它定义一个全局错误处理程序，在此将放置在执行主应用程序逻辑之前要运行的特定于平台的代码。
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