While this is an intellectually worthwhile goal, it does not usually add to the body of useful languages.
虽然这是在智力上值得做的目标,但是它通常不能添加到有用的语言体中。
Sometimes, adding capacity is exactly the right strategy if your goal is to add more revenue.
有时,增加容量确实是正确的策略如果你的目标是增加更多的收益。
Let's make the goal more complex and add some conditional text rendering - for example, CSS class names for even and odd table rows.
现在让我们实现更复杂的目标并添加一些有条件的文本呈现—例如,命名偶数和奇数表行的css类。
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