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我想比较一个ID对象的类。但是，如果我尝试将对象的类与NSNumber的类进行比较，它将不会注册为等于，即使我已经为NSNumber设置了一些变量。请你能告诉我为什么它没有注册，这是我的代码。ID比较不能正常工作
NSMutableDictionary *dict = [NSMutableDictionary dictionary];
[dict setObject:n.title forKey:@"title"];
[dict setObject:[NSNumber numberWithBool:n.allDay] forKey:@"allDay"];
[dict setObject:[NSNumber numberWithInt:n.availability] forKey:@"availability"];
[dict setObject:[NSNumber numberWithInt:n.createdBy] forKey:@"createdBy"];
[dict setObject:n.endDate forKey:@"endDate"];
[dict setObject:n.location forKey:@"location"];
[dict setObject:n.notes forKey:@"notes"];
[dict setObject:n.ownerUsername forKey:@"ownerUsername"];
[dict setObject:n.startDate forKey:@"startDate"];
[dict setObject:[NSNumber numberWithInt:n.status] forKey:@"status"];
NSMutableString *json = [NSMutableString string];
[json appendString:@"{"];
for (NSString *key in [dict allKeys]) {
id obj = [dict objectForKey:key];
if ([[dict allKeys] indexOfObject:key] == 0) {
if ([obj class] == [NSNumber class])
[json appendFormat:@"\"%@\":%@", key, obj];
else
[json appendFormat:@"\"%@\":\"%@\"", key, obj];
}
else {
if ([obj class] == [NSNumber class])
[json appendFormat:@",\"%@\":%@", key, obj];
else
[json appendFormat:@",\"%@\":\"%@\"", key, obj];
}
}
[json appendString:@"}"];