Notice that we use the cout operator.

请注意，我们使用了cout操作符，但 C++ 不能够识别。

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Note that the error messages must go to STD: : cerr and not STD: : cout.

注意，错误消息必须发送到std：cerr而不是std：cout。

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Next, add the following lines in the code for the second process (Listing 4) just after STD: : cout, and rebuild the code.

接下来，在第二个进程的代码(清单4)中std：cout后面添加以下代码并重新构建代码。

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When you check whether help is the relevant command option for the program (this is what vmap.count (" help ") does), the options object is dumped to cout.

当您检查help是否为程序的恰当命令行选项(这是vmap . count (“ help ”)所做的工作)时，options对象将被转储到cout。

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When you check whether help is the relevant command option for the program (this is what vmap.count (" help ") does), the options object is dumped to cout.

当您检查help是否为程序的恰当命令行选项(这是vmap . count (“ help ”)所做的工作)时，options对象将被转储到cout。

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