數據排序

NSMutableArray *myWechatArray = [NSMutableArray arrayWithCapacity:1];
    for (QHHomeAddOtherInfoModel *model in array) {
        if ( [model.chooseType isEqualToString:@"wechat"]) {
            [myWechatArray addObject:model];
        } 
    }
    [array removeObjectsInArray:myWechatArray];
    if (_contactArray) {
          [_contactArray removeAllObjects];
    }
  
    [_contactArray addObjectsFromArray:myWechatArray];
    [_contactArray addObjectsFromArray:array];