摘要：
1、数据格式必须是NSObject对象，即使在数据表中是整型（integer）、浮点型（float），如 NSString * dishId = [_infoDictionary objectForKey:@"id"]; NSString * dishName = [_infoDictionary objectForKey:@"name"]; NSString * specialPrice = [NSString stringWithFormat:@"%@",[_infoDictionary objectForKey:@"f 阅读全文
