Second, you need to define a class-level variable on the CmdLineParser class as well that defines the actual string value to represent the option. You can do this by adding this line.

然后，还需要在cmdlineparser类上定义一个类级别的变量，定义用于代表选项的实际字符串值。

youdao

The Knicks had Ewing and no great second option, as Starks was more of a third option.

尼克斯有尤因，但没有第二点，斯塔克斯最多能算个第三点。

youdao

The second option is to visit a good florist in you area and pre-book a bouquet. This allows you to see the quality of the flowers first hand, and add any personal touches such as a handwritten card.

第二种方式就是在附近区域的花店提前预定，这让你真实体验鲜花的感觉，而且还可以亲手写一张卡片代表心意。

youdao

This is possibly best thought of as a very big Experia phone with no screen and a one-second battery life, with the option to upgrade to a full PS3 experience.

FORBES: Connect

Organizations now have the option of using Second Life as a service hosted by Linden Lab, using Second Life Enterprise as a standalone solution hosted behind their firewalls, or a combination of both.

FORBES: Yahoo!'s New HQ: A Modest Proposal

As a result, the talk in Luxembourg focused on the third option: putting essentially the same treaty to voters a second time, ideally early next year.

ECONOMIST: But will anybody listen to them?