解析字典包含关键字比如ID，description等，MJExtension 框架 不能直接设置变量与其同名。

@property (nonatomic,strong) NSString *descrip;  //设置变量名

_DataReceived=(NSMutableArray *)[HZnewsmessage objectArrayWithKeyValuesArray:tempnews];

//上面利用MJExtension框架遍历都是通过变量名与KEY相同的情况，而关键字需要单独遍历

for (int i=0; i<tempnews.count; i++) {

NSDictionary *temp_dic=[tempnews objectAtIndex:i];

HZnewsmessage *temp_mesg=[_DataReceived objectAtIndex:i];

temp_mesg.descrip=[temp_dic objectForKey:@"description"];

[_DataReceived replaceObjectAtIndex:i withObject:temp_mesg];

}