解决xcode运行崩溃，但是大断点无法定位，又不打印错误

```

- (BOOL)application:(UIApplication*)applicationdidFinishLaunchingWithOptions:(NSDictionary*)launchOptions {

// Override point for customization after application launch.

NSSetUncaughtExceptionHandler(&uncaughtExceptionHandler);

returnYES;

}

```

```

staticvoiduncaughtExceptionHandler(NSException*exception) {

NSLog(@"%@\n%@", exception, [exceptioncallStackSymbols]);

}

```