可以用在代码的调试上：
-(instancetype)init{
@throw [NSException exceptionWithName:@"Singleton" reason:@"Use [GloabData shareData]" userInfo:nil];
return nil;
}
或者：
NSException * e = [[NSException alloc] initWithName:@"Singleton" reason:@"Use [GloabData shareData]" userInfo:nil];
@throw e;
抛出了一个bug：
关于异常的处理：
NSException* ex = [[NSException alloc] initWithName:@"ExceptionName" // just for test
reason:@"XXX"
userInfo:nil];
CustomNSException* ex = [[CustomNSException alloc] initWithName:@"CustomNSExceptionName" // just for test reason:@"XXX" userInfo:nil];
@try { bool error = YES;
if (error) {
@throw ex;
}
}
@catch ( CustomNSException *exception ) {
NSLog(@"CustomNSException.name = %@" ,CustomNSException.name);
NSLog(@"CustomNSException.reason = %@" , CustomNSException.reason);
UIAlertView* alert = [[UIAlertView alloc] initWithTitle:CustomNSException.name message:CustomNSException.reason delegate:nil cancelButtonTitle:nil otherButtonTitles:nil];
[alert show];
}
@catch ( NSException *exception ) {
NSLog(@"exception.name = %@" , exception.name);
NSLog(@"exception.reason = %@" , exception.reason);
}
@finally {
NSLog(@"@finally");
}